Volcán de Lodo, Arboletes

A mud volcano just outside the beach town of Arboletes on Colombia's Caribbean coast, with a large pool of warm, thick grey mud. You can't swim in it, but you don't sink either: you just float there, which is a very strange feeling. The mud is said to be good for the skin.

Afterwards, walk two minutes to the beach to wash it all off in the sea. There are small lunch places nearby that sell cold beer. There's a small entry fee, and you can leave your things in lockers. Wear an old swimsuit.

From Montería, take a bus towards Arboletes (about 1.5 hours) and ask to be dropped at the volcán de lodo.