2. Marble Caves, Chile
Within General Carrera Lake in Patagonia, a shared space between Chile and Argentina, over 6,200 years of waves have formed the Marble Caves. These geological formations are located in the center of the lake, and are made up of a group of caverns, columns and tunnels, which you can visit by boat. The Marble Caves’ lights and colors change throughout the year from a natural marble color in the early spring and a blue color in the summer.