In terms of length of its tunnels (191km recorded), this is Europe's largest cave system. Discovered in 1875, a 1km section is open to the public. Broad tunnels, active erosion bowls, huge rock faces split by chasms, delicate accretions in the form of roses, candlesticks, shells...
Phone:+41 41 390 40 40
Price:20 Fr. (children 10 Fr.)
Jul-Aug.: daily except Mon-Tue 10am, 1pm, 3.30pm; Jun and Sep: weekends 10am, 1pm, 3.30pm - tour available (3hrs or half a day). Wear warm clothes (6°C) and good shoes