This can be the most expensive bit, but with a bit of perseverence and ingenuity, the cost can be minimised.
Hoverspeed http://www.hoverspeed.co.uk Dover-Calais Dover-Oostende (Ostend) SeaFrance http://www.seafrance.co.uk Dover-Calais P&O Stena Line http://www.posl.com Dover-Calais P&O North Sea Ferries http://www.ponsf.com Hull-Rotterdam Hull-Zeebrugge Euro Tunnel http://www.eurotunnel.co.uk Folkestone-Calais/Coquelles Stena Line http://www.stenaline.com Harwich-Hoek van Holland (Hook of Holland) FerryBooker http://www.ferrybooker.com Various Routes Ferry Sav£rs https://www.ferrysavers.com Various Routes
This is the tiring bit. There are essentially two routes to choose between, either using the A3 autobahn (let's call this the Northern Route) or the A8 (the Southern Route), although numerous variations are possible. The first part of either route will vary depending upon the port used.
Drive to Dunkerque (Dunkirk) along the E40. To use the Southern Route, head south along the E42 to Lille, Mons and then Namur. To use the Northern Route, carry on along the E40 towards Oostende (Ostend). Then continue as for the route from Oostende. (Ostend)
Drive past Brugge (Bruges) on the 31 until the E40 is met. Then continue as for the route from Oostende (Ostend).
Drive to Brussel/Bruxelles (Brussels) along the E40. The motorway skirts round the north side of the city. To use the Southern Route, take the E411 towards Namur. To use the Northern Route, continue along the E40 to Liege, Aachen and Köln.
Get onto the E25, and head for Rotterdam. Then continue as for the route from Rotterdam.
Either Head towards Dordercht and get on the E31. Head towards Gorinchen, Tiel, and then Arnhem.
Or Follow the E25 towards Gouda, and then the E25/E30 Past Utrecht and on to Arnhem.
Then Follow the E35 from Arnhem via Gelsenkchn, Duisberg and Düsseldorf to Köln.
Head south on the E41 towards Neufchateu, Arlon and Luxembourg (Luxemburg).... To be continued.
The A3 autobahn runs from Köln all the way to the border with Austria, passing Siegburg, Limburg, Frankfurt, Aschaffenburg, Würzburg, Nürnberg, Regensburg, Deggendorf and Passau. In Austria, the autobahn continues as the Austrian A8. About 20 miles into Austria, turn off to Ried. From this point, the rest of the route is on much smaller roads, a welcome relief after endless motorways, and the scenery starts to become distinctly alpine. Follow the 143 via Eberschwang, Ampfelwang, Vöcklabruck and Gmunden, where the 145 is picked up. Follow the 145 via Altmunster, Traunkirchen, Ebensee and Weissenbach to Bad Ischl. You're nearly there now - only The Last Bit left to go.
Follow the 145 via Bad Goisern and over the Pötschen Pass. On descending from the pass, there are two turnings for Bad Aussee. The first turning, on the left, descends a very steep hill, and then crosses a bridge over a river. Carry on straight ahead after the bridge to reach the town centre. The second turning for Bad Aussee is to the right. At the bottom of the sliproad, turn right again to pass back under the 145 and follow the road into the town centre. Both routes meet up in the town centre at a junction which vaguely resembles a roundabout. There seem to be no obvious rules here, except not to bump into anything. Follow the sign to Gössl, passing immediately through a very narrow section of road with traffic lights to control the flow of traffic. The road crosses a river, and shortly after swings left and then right, around a blind corner, before leaving the town. After about 3 miles of pleasant meandering through woods and meadows, look out for Gasthof Staud'n'wirt on the left. Base Camp is in the field on the right, opposite the Gasthof.
This is getting to be a reasonably priced option, but gear still needs to find its way to Austria, and we need enough cars out there to ensure a free flow of cavers up and down the toll road.
Cheap flights are available to Munich and Salzburg. Salzburg is closer, but has fewer flights and may even be more expensive. The extra cost difference to Munich on the railways seems to be very little. In 2000, a return from Munich to Bad Aussee on the train was about 23ukp.