Abstract: A body sailer allows an operator to sail in a partially submerged position. The body sailer includes first and second buoyancy pontoon devices held in a spaced apart relationship by a frame. The frame is coupled to a third buoyancy device disposed advanced from the first and second buoyancy pontoon devices in a forward sailing direction. The operator may be supported by a harness between the first and second buoyancy pontoon devices and astern of the third buoyancy pontoon device. The body sailer includes a hand grip mounted underwater to the third buoyancy pontoon device. The third buoyancy pontoon device is articulatable in yaw and pitch with respect to the first and second buoyancy pontoon devices. A mast with a retractable sail may be coupled to the frame. Rudders are coupled to the first and second buoyancy pontoon devices and move in a response to movement of the third buoyancy pontoon device. The craft may be submersible with diving/climbing controls and submerging/resurfacing apparatus.