Wheelchair Access starts unpromisingly with a pitch and a very obscure
little thrutch.
Beyond the Ramp is another thrutch down the awkward Kein Zimmer Rift
Opening out, a final 5m pitch drops into the Lost World
Upstream passes through Pteramacsuit Chamber to reach the
Bourneville Lake
Water from avens has eroded the "Bourneville" mud floor to produce a way
through to another section of downstream passage to a final choke.
Downstream Lost World starts with a fine old phreatic tube...
... and ends in a large chamber with much collapse.