Holiup

polarkids' activitieswaterfallsUnited KingdomcountrysidetemperatePolandNorth-Americahigh altitudeSalzachRepublic of the CongoDominicaPitcairnOceaniafreeride skiingOtta

caves at Stäfa, Switzerland

Baptist Cave

23km

Täuferhöhle7

Täuferhöhle6

Täuferhöhle5

Hell grottos

29km

Höllgrotten Baar lower cave 20201015

Höllgrotten 09

Höllgrotten 05

Round Lime Formations Hell-Grottoes

Water boundary

Undewater formations Baar