A multi-part boat includes a plurality of substantially hollow hull sections with at least one end of each section being attachable to one end of another section, with at least one bulkhead attachment means comprising a groove portion and a tongue portion. Hull sections include a bow section, a middle section, and a stern section. The bow section and the stern section can at least partially fit within the middle section when the boat is in a disassembled configuration. The bottom side of the hull sections includes a keel that partially overlaps an adjacent hull section and include a cooperating keel that is shorter than the length of the bottom side thereof by the amount of overlap of the keel. The tongue portion includes a locking means which further includes a tapered shim for frictionally locking the tongue portion to the groove portion. The tapered shim further includes an elongated aperture and a handle whereby the handle can be pivoted between a locked and an unlocked position.