SeaArk’s Tunnel Hulls are designed to be used with a conventional prop driven engine. The transom is higher than on a conventional hull and a “tunnel” is designed into the bottom of the boat which allows the engine to be raised so the prop turns inside the “tunnel.” Tunnel Hulls are most often used when the operator needs to run in very shallow water but does not want to lose the “bite” of the prop. Standard features and options are similar to Non-Tunnel Hull models.