The Marble Caves are located in Chile’s Lago General Carrera, a sea-sized lake known for its striking turquoise waters.
The caves (the most famous of which is Capillas de Mármol), are believed to have been formed from 6,000 years of erosion by the cool glacial waters that poor into the lake. These marble monoliths are a mix of amazing vibrant blue and grey chambers forming partially submerged caverns and tunnels in limestone rock.
Boat tours usually start from the horribly tourist town of Puerto Río Tranquilo, and cost in the region of £15 per person for the hour long ride, but the best way to get up close and personal to the caves is to hire a kayak and paddle out there yourself.
Kayaks can be hired from the kiosk/campsite just 7km south of Puerto Tranquillo, leaving you with a mile long paddle to reach the caves themselves.
This is what I did on windy day in January 2016. Here are some of the photographs I took during my visit.