Calderas river is a pristine, clear green river that carves through untouched Colombian rainforest. Start the adventure in Medellin and drive for 2 hours to playa loca via Medellin-Bogota highway. Raft the Calderas river 2.5 hours with 4 class rapids and beautiful waterfalls. This rafting experience is beyond just paddling whitewater, it’s a fascinating journey into the heart of Colombia’s most untouched rainforest.