Hawaii is on a lot of people's travel bucket list. You may think sand beaches and volcanoes, but formations like this are breathtaking. What's your favorite thing about Hawaii? (Na Pali Coast Waterfall Cave, Hawaii)
Marble Caves of Patagonia in Chile – Lake Carrera. The lake is on the border of Argentina and Chile, and the caves are located on the side of Chile. The caves are the three main grotto: Chapel (La capillaries), Church (El Catedral) and Cave (Cueva).