70056554 - Group of tourists kayaking, passing a Karst formation, Phang-Nga Bay, Ao Phang Nga Nation Park, Phang Nga, Thailand70056553 - Boat passing a Karst formation, Phang-Nga Bay, Ao Phang Nga Nation Park, Phang Nga, Thailand71321844 - The karst limestone formation at Parc National des Tsingy de Bemaraha, UNESCO World Heritage Site, Tsiribihina region, Madagascar, Africa70513837 - Woman hiking on karst formation, Nurracher Hoehenweg, Loferer Steinberge range, Tyrol, Austria70513836 - Woman hiking on karst formation, Nurracher Hoehenweg, Loferer Steinberge range, Tyrol, Austria71227015 - Karst formation at plateau Gottesackerplateau with Hoher Ifen in background, Allgaeu Alps, valley of Walsertal, Vorarlberg, Austria71227016 - Karst formation at plateau Gottesackerplateau with Hoher Ifen in background, Allgaeu Alps, valley of Walsertal, Vorarlberg, Austria13823320 - El Tornillo rock formation. El Torcal de Antequera, Sierra del Torcal, Antequera, Málaga, Andalusia, Spain. Karstic rock formations13823317 - El Tornillo rock formation. El Torcal de Antequera, Sierra del Torcal, Antequera, Málaga, Andalusia, Spain. Karstic rock formations
