Tarp Sail is a craftable item which can be placed on a Raft to be used as a type of Propulsion. It can be crafted with one Tarp, one Lashing, and one Wood Stick.

Multiple sails can be placed on a raft, but only one can be used at a time. While it may not be as fast as a Boat Motor, a sail does not need to be refueled, and one can still easily outrun sharks with it.