Monday, Aug 17, 2020, 1:17 pm

By:Tony Williams

#12 Marble Cave - Rio Tranquilo, Brazil

The Marble Caves were formed by waves washing against the calcium carbonate walls of the Patagonian Andes for over 6000 years. Reflecting an electric sky blue from the waters of Lake Azure, guests can embark on a thirty minute guided tour of these gorgeous caves carved into solid marble along the Chile Argentina border.