Abstract: A watercraft (11) comprising a shell having an upper skin (13) adapted to support at least one person, a lower skin (15) defining a hull (23) for contact with the water, an aperture (24) extending through the upper and lower skin and defined by a sidewall (100) enclosure between the lower skin (15) and the upper skin (23) to maintain the integrity of the shell, wherein the aperture (129) removably secures a propulsion means (31) for propelling the watercraft (11), such that a cavity within the shell remains watertight to allow for practical functioning when the propulsion means (31) is removed.