New Boats, Used Boats, and Consignment Boat Sales. Texas Marine has been the number one dealership in Southeast Texas for the past five years and has served their customers for more than 45 years now. With three dealerships in the Houston area, in Conroe, Beaumont, and Clear Lake - we are here for our neighbors. We carry Avalon, Barletta, Chaparral, World Cat, NauticStar, Yamaha, Robalo, and Shoalwater boat brands. Texas Marine also provides financing, a first class service department and a SELL US YOUR BOAT option.