The Innespace Seabreacher (or Sea Breacher) is a two-seat submersible personal watercraft, designed by Rob Innes and Dan Piazza of the American company Innespace. It is the production model of the single-seat Innespace Dolphin.
This larger two-seat vessel is powered by an Atkins Rotary Marine engine coupled to a Hurth V-drive transmission.
The vessel's shape is based on the shape of a dolphin, and imitates a dolphin's movement.