In Patagonia, South America, General Carrera Lake is shared by Argentina and Chile. But on the Chilean side of the beautiful emerald-green to turquoise-blue waters, there are breathtakingly beautiful marble caves carved into passageways and caverns. These amazing marble formations were sculpted by erosion into three main marble formations: La Capilla (the Chapel), El Catedral (the Cathedral), and La Cueva (the Cave). The impressive labyrinth of marble caves are large enough for a small boat to glide into. Here are those magnificent marble caves.