Jangadas are traditional fishing boat on the north coast of Brazil, originally simple log rafts.
The Jangada 488 is a special surf scow, with the choice of a Bermudian or a crab claw rig, barn door or lifting rudder, and optional seating wings. There is enough space to sleep on board.
8-12 sheets of ACX 3/8 plywood – depends on format.
I recommend using epoxy, without glass fiber, on the bottom of the hull, chines and all edges.
The plans details all the parts dimension for both models, the parts nesting on plywood sheets for CE, US and Brazil formats, and a complete building sequence in 3D.