- Stock #221944 - Carver Mariner...AC/Heat, Generator, Sleeps 8...a Great Boat! The Carver Mariner 3697 is designed to be a home on the water and is great for cruising, family outings, weekends or longer adventures. The large aft deck with access to the water all around make it a formidable fishing platform as well. The Mariner is powered by twin Crusader 454 engines with more than enough power to take you anywhere you want to go. The Kohler generator powers the boat's accommodations, air condition and heat, and hot water for the stand-up shower while motoring away from the marina, or for ... read more