A personal wind-powered hydrofoil watercraft having a sail supported by a mast coupled to a buoyant body, where the mast is tiltable forward and backward but not side to side, in order to prevent excessive rolling of the buoyant body when it is lifted clear of the water on the hydrofoils. Additionally, the buoyant body may be in the shape of a pontoon, the watercraft may be steerable by a steering mechanism actuated by a human operator's foot or feet, and the front hydrofoil may be associated with a surface tracking means in order to stabilize the altitude of the watercraft.