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<title>258: Underground description</title>
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<table id="cavepage">
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<tr><th id="kat_no">258 - a b</th><th id="name">Tunnockschacht</th><th id="status">2 ??</th></tr>
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</table>
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<h2>How to find it</h2>
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<p>From the stone bridge, follow the cairns towards 204e entrance. Upon
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reaching the final gully, where the path turns up to the right towards
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that entrance, continue straight across and then work to the right,
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traversing around
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the rear lip of a hole. This leads to the bottom of a loose climb, which
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is ascended to reach another level. A prominent Christmas tree style fir
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marks the point where another climb is made to the next level up. It is
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then necessary to ascend to the next level above this, either by a short
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traverse and then a narrow climb between two blocks, or by heading right
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and then heading back up to the left. Having done this, a short ascent
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on small loose stones brings one to the uppermost level, marked by a
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prominent cairn (visible from the stone bridge).
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</p>
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<p>Follow the cairns around to the left, descending slightly at first and
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then maintaining the same level, to eventually reach a cairned point
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overlooking a large broken gully running from right to left. Descend
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into the gully (passing the shaft of 2004-18) and cross to the other side
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where an obvious level ascends upwards and to the right. Having reached
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the top, follow the cairns to the right to arrive quickly at an area with
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a hole to each side. The shakehole to the left, containing a cairn some
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two feet high, contains the A entrance; the B entrance is the other hole.
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</p>
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<h2>Entrance shaft</h2>
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<p><b>Warning:</b> There are a fair number of loose rocks on the entrance
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pitch, particularly in the top section. Rocks that have been dislodged
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could fall almost all the way down the shaft.
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It is advisable for one person to
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descend at a time and for the others to cower in the places marked below, or
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wait at the very bottom by the ice stals.
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</p>
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<p>The entrance, of moderate proportions, gives onto a
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steeply-sloping shaft that descends for a total of 70m depth. The
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shaft is imposing, and the view up from mid-descent is impressive.
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A thread in
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the bottom of the shakehole is succeeded by a bolt on the left wall under
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the dripline, enabling a descent for several metres to a small ledge.
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Working around to the right here gains a rebelay, succeeded by another under
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a small nose of rock just where the shaft becomes vertical.
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</p>
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<p>The landing after the rebelay is on a large ledge, partially occupied by
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a large area of snow. There is a bolt here to anchor the rope, and above
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is visible the shaft of the B entrance.
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Upslope leads to an alcove, where it is possible
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to shelter whilst people are on the upper part of the pitch. The rear of
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this alcove opens onto the top of a pitch that appears to be of quite
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some depth [QM B]. Downslope from the landing a traverse is followed on
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the left wall; a bolt low on the wall just before the end provides the
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belay for a scruffy descent of only two metres to another rebelay on a flat
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wall. From here, the descent continues either on top of or alongside a
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large snow plug to a rebelay on the left wall. After this, one continues
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over a section of loose boulders and then drops in an awkward crack to
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a crows' nest known as the Col, where there is a further rebelay. (The
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rigging just above the Col is sub-optimal, and could do with further
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work.) Care should be taken at the Col not to bang one's head on the
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boulders above, as their undersides look loose. The Col provides a further
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place where shelter can be taken from falling debris.</p>
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<p>Continuing the descent in the main shaft from the Col gains another
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snow plug and the base of the rift holding the Col. It is possible that
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this rift could lead to further passage [QM B], either accessed from this
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point or by descending the pitch on the other side at the Col.
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Abseiling over the snow plug towards the right wall, a high bolt provides
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the belay for the final section of the pitch. The rope rubs on a boulder
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here and a deviation should be installed. The final section drops
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near-vertical for a short distance and then becomes steeply-sloping
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over snow. Gradually, the snow flattens out (passing a possible way on
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to the side of the snow plug on the left wall [QM C]),
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and the bottom is reached
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at a pool of ice. There is an ice stal on the right and another in an
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alcove to the left. The one in the alcove could be ascended with ice and/or
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climbing equipment to reach a passage [QM C].
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On the existing rigging, reaching this point requires
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approximately 100 metres of rope, a long sling, and nine hangers.</p>
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<h2>First horizontal level</h2>
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<p>The main way on from the ice pool is a hole at floor level that leads
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into a chamber. Another small hole to the right gives access to
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<b>Bauernkrapfen Passage</b>, a well-formed crawl debouching into a large rift
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chamber, <b>Three Fried Mice</b>. Following the chamber around to the left
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leads to a choke at the bottom of a slope, although before this it is possible
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to climb up the wall and through a hole under boulders to gain a higher level,
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with a view over the chamber before Bauernkrapfen Passage but no other ways
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on.</p>
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<p>Following the rift around to the right from the end of
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Bauernkrapfen Passage, passing some faulted phreatic tubes in the left wall,
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leads to an opening in the right wall. This sucks strongly and
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continues as a phreatic passage past a delicate traverse over a hole [QM C]
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to eventually arrive at a further hole in the floor. This will require
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rigging to traverse or descend.</p>
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<p>Beyond the fine traverse of Caramel Catharsis a large sandy passage slopes
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gently down to a junction. Ahead is a stoop leading though into the Littoral North.
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</p>
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<h2>Littoral North</h2>
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<p>Beyond the stoop is a 3m climb down in a rift below an aven, which
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can be climbed far enough to see that it probably doesn't go. At the bottom
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is wide stony passage with obvious ways off to West and North. There
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is a handy water-filling pool here.</p>
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<p>West, there is a stepped pitch down to the left [2007-258-01-A], and a 3m
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climb up to the right of this (rope needed) leads into a strongly
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draughting (inwards) passage which goes about 50m to the edge of a
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large round pitch[2007-258-02-A]. A continuation [2007-258-03-B] can
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be seen 15m away across the far side.</p>
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<p>North (from the water-filling pool) a 2m climb up rotten calcite leads (past [2007-258-04-A], LHW) to an unusual
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critical-angle pile of 10cm diameter rocks <strong>Y KeyKey Beach</strong>.
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The narrowing at the top of this pile
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(it gets close to the roof) has a stonking gale coming through it. Just
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beyond this where the passage widens to 8m, behind the large rock on the left
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is the hidden entrance to <strong>Rhubarb Crumbly</strong>, the key to the
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<strong>Max Pleasure</strong> area. On the right, at the widening, is
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a shallow pit [2007-258-05-C].</p>
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<p>Ahead the comfortable passage only goes for about 20m before reaching the
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edge of a huge shaft undercutting the RH wall[2007-258-06-A]. An airy
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traverse to the left of this reaches another hole on the left down,
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apparently into the same pitch[2007-258-07-B]. Immediately ahead is another
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large hole [2007-258-08-A]. Up is a large aven (30m+ [2007-258-09-X]. There appears to be a continuation across the
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other side - a long bolted traverse away[2007-258-10-B].</p>
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<h3>Rhubarb Crumbly</h3>
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<p>Climbing down behind a large rock in Littoral North gives access to nice
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walking passage floored with dark dirt, trending NNW. A strong breeze
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blows in. After 40m the passage passes over a cross-joint forming a
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pitch that can be seen through a very small hole in the floor. Would
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need capping to get in. Immediately beyond a C2 gets into almost
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perfectly straight passage with some popcord on the walls. At the end
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is a wider T-junction. Down to the left is a stoop into a
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boulder-floored chamber containing a too-tight crawl on the left and
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two small avens [2007-258-11-X] (at 1st corner), [2007-258-12-X] (at
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end). To the right is another T-junction only 5m further on. Right is
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Max Pleasure. Left is Dubious Pleasure, down which all the draft goes.</p>
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<h2>Dubious Pleasure</h2>
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[Description Needed - Jon Telling or Morwen]
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<h2>Max Pleasure</h2>
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<p>Fine walking passage heading steadily up-dip. Strong outward draft.
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Goes 180m to Starfish junction, via a few boulders to clamber over.
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After 130m a shelf forms on LH wall after floor canyon disappears
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under LH wall. The shelf is the main way on and rises slowly above
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floor level until you are traversing past a large hole on the R. This
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connects under RH wall to [passage name needed]. Crawls
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on LH side at shelf level 30m south of Starfish Junction have
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[2007-258-13-C] parallel to main passage and [2007-258-14-B] in back
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corner behind pillars. [2007-258-15-B] is a climb up on L in
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cross-rift 10m south of Starfish Junction. [2007-258-16-X] is a high
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(20m+) aven at the same point.</p>
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<p>Starfish Junction has 4 large passages meeting at a large boulder and
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is a distinctive spot. Ahead (North) Max Pleasure continues, The
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right fork is <string>Flying High</strong>. The 4th passage is
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[passage name needed]. Including the higher and lower-level
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connections this is a complex junction.</p>
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<p>Max Pleasure north of Starfish Junction initially opens into a
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High chamber with a drafting (inwards) passage off on the L (
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<strong>Just for a Laugh</strong>). The chamber merges back into walking passage after 40m. 10m along a
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soil slope comes in from the right wall, choked to the left, and a
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low crawl [2007-258-17-B] to the right. The passage slopes gently
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down until it meets a larger one with the way on going gently up-dip
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to the right. There is a large boulder at the junction. The
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continuation of the larger passage on the left is choked with soil.</p>
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<p>Past a pillar the passage opens up into a high wide chamber with a deep
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canyon in the floor, largely covered by boulders. At the start of the
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chamber a rapidly-lowering passage goes back right for 8m before
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being choked with sand. At the far end of the chamber you step over
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the canyon [2007-258-18-A] and have to clamber over some very nice
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flowstone to proceed. The obvious way on is walking passage but in
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fact the passage goes at two levels here - you can also climb down
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below the flowstoned chockstone and follow the canyon
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upstream to get to the same chamber.</p>
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<p>Following the obvious higher level brings you into another chamber with a
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deep hole in the floor [2007-258-19-A] , mostly blocked by a large
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jammed boulder. Traversing around the left hand side reaches a 3m
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climb down to the far side of the hole. This is <strong>Petticoat Junction</strong> where there
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is a choice of left towards <strong>Let's get Naked</strong> or ahead across
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rocks and uphill to <strong>Hedonism Highway</strong>.</p>
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<h2>Hedonism Highway</h2>
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Very high rocky passage uphill with monster draft (considering
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passage size) blowing out. This whole passage is formed on a bedding
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plane sloping at about 25 degrees from horizontal, so everywhere is
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walkable but quite steeply sloping. A tricky c2 over a block reaches
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a sandy hading chamber. Going across to the left reaches a very wide,
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bedding-aligned area with a choice of routes upwards either side of a
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pillar. [2007-258-20-A] is a passage off to the left. At the top of
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the wide bit the passage reverts to a phreas with a deep canyon which
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is largely inaccessibly-narrow. It is at least 8m deep and there are
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a couple of points one could get in
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[2007-258-21-C].</p>
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<p>Climbing over a large boulder the passage widens due to a junction. The
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passage goes off left upwards [2007-258-22-A], as does the canyon,
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and another goes off left downwards [2007-258-23-A]. The passage
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continues steeply up-dip and gets bouldery. There are a couple of
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huge dropped sections of rock that have been undercut and split from
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the roof. On the left is a small alcove passage. Next a small
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cross-passage roof tube. Neither of these go. The draught remains
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strong, blowing out. The passage turns 90 left to go along the dip. A
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strongly draughting small passage comes in fro the right at the
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corner. Hedonism highway gets boulderier and closes down over the
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next 60m. This point may be quite close to the surface.</p>
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<hr>
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<p>Taking the smaller northerly passage at Petticoat Junction leads
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into passage of varying character. It starts with deep dark soily
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deposits. Awkward small passage on L connects back to the climb just
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before Petticoat Junction. The draught is still strong and inwards.
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Crossing a soily crater leads to a sloping c3 up a wide, high
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rift, then along 10m of narrow joint-controlled passage to another
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sudden change of character. Ahead is a tight passage which draughts out and
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becomes a dig after 10m [2007-258-24-D]. The way on is the very wide
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phreatic passage sloping steeply down to the east. The small central
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canyon of this passage goes under the RH wall to the west [2007-258-25-C].</p>
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<p>The passage zigs and zags sharply past a crawl off on the L
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[2007-258-26-C] for 20m to merge into nice straight passage sloping
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gently down-dip. After 35m it steepens and a small canyon forms,
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reaching a 3m deep drippy pot after another 25m. A c2 gets to the
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floor and a delicate and slightly damp c3 gets back into the
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continuing passage.</p>
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<p>Here the passage is wide and sandy and forks: off on the right is
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<strong>Let's get Naked</strong> (draughting out). Down to the left
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it descends steeply and crossword passage goes off on the Left. 10m
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beyond is [2007-258-27-C] on the L then a gravelly bit with an aven
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above [2007-258-28-X]. The passage continues to descend down-dip
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until it suddenly chokes (3m dia!) with mud and rocks. This would be
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a top dig site in the UK [2007-258-29-D]. On the L is a large (8m
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dia?) chibble-floored pothole which can also be overlooked from a
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balcony, reached via a passage on the L; that passage has a small QM
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[2007-258-30-C]. On the far side of the hole a crawl heads off,
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unsurveyed, continuing down-dip for quite some distance (30m?)
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hole.[2007-258-31-C]</p>
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<h2>Crossword Passage</h2>
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High canyon passage initially rises gently then up more steeply.
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There is a hole in the roof [2007-258-32-X] here. Now progress is
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either a traverse to look out over a pitch past a huge wedged
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boulder, or progress at floor-level to look out below the boulder.
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Probably about a P12 [2007-258-33-B]. This passage draughts in.
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<h2>Let's get Naked</h2>
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Very sandy, low, wide passage curves round to the R. [2007-258-34-C]
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goes off to L at lowest point. Clambering up over boulders with
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freezing draught in your face (out of cave) reaches a aven, which we
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partially climbed and it appears not to go, but there seems to be a
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drauft defecit beyond. Ahead the passage rapidly shrinks to a narrow
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rift which can be climbed (c4). [Let's get naked continues...]
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