Canal Boatyard, Marina Moorings, Canal Boat Holiday Hire & Marine Engineering Services. Calcutt Boats Ltd is a full service boatyard set in 40 acres of landscaped grounds near Napton, offering wharf services including; Diesel, Gas, Pump-out, solid fuel & a full range of chandlery in the shop. The shop is also online at www.calcuttboatsshop.com.In addition they offer Marina berthing for 240 boats, boat brokerage, self drive canal boats for short breaks or longer holidays, full boat fitting and re-fit facilities and a marine engineering department that specialises in BMC engines. We are open seven days a week from 9 – 5:30.