These are the Most Beautiful and Mysterious Caves in the World
5 The Marble Cathedral
The Cuevas de Marmol, or the Marble Cathedral, is a cave carved into Chile’s General Carrera Lake, which spans the Chile-Argentina border. Visitors a long trip before arriving there: They must fly from the capital to the lake city Coyhaique, then drive 320 kilometers south to the lake. But the long journey is completely worth it when viewers are rewarded with crystal-clear water and beautifully patterned walls of marble. The caves are only accessible by boat. The cave was formed 6,000 years ago by waves crashing into calcium carbonate. The color of the water varies with the weather, water level, and the time of year.