I went here and stood over the falls on a rock that stuck out, no guard rails and you can stand in the water not far from the edge. So beautiful! Kaieteur Falls, a waterfall on the Potaro River in central Guyana, South America.
Explore the ancient caves of Hang Son Doong, Vietnam. Hang Son Doong is one of the largest caves in the world and features a fast-flowing underground river. For spelunkers, exploring Hang Son Doong is the equivalent of scaling Mount Everest.
Marble Cave, Chile Chico, Chile & The most spectacular caves network in the world and this Marble Cathedral is absolutely magnificent. It& located in Patagonia, Chile on the second largest freshwater lake in South America, General Carrera.