Rio Grande rafting is Port Antonio's signature activity — a long, leisurely journey down a clear river through dense tropical forest on a bamboo raft poled by a local guide. The trip takes two to three hours and covers around 14 kilometres from the launch point at Berridale to the mouth of the river at Rafter's Village.
The river is calm and beautiful, the forest overhead is thick, and the guides are accomplished both at navigating the raft and at telling stories. Swimming is possible at several points along the way. This is nothing like the organised adventure tourism of Montego Bay; it is a genuinely relaxed experience. Trips can be arranged through guesthouses and hotels in Port Antonio.