Join the largest boat dealerships of Houston on Lake Conroe for the Annual Lake Conroe In The Water Boat Show on Saturday, April 26 & Sunday, April 27 from 10 am until 4 pm. RAIN OR SHINE. Locations all around Lake Conroe will have boats in the water and ready to demo. Experience the Rinkers Boat World difference firsthand! Be our guest at our Lake Conroe location, test drive boats and discover our 6 best-in-class boat brands—Cobalt Boats, Sylvan Pontoons, SUPRA, MOOMBA, Sea Hunt Center Consoles and StarCraft Marine deck boats.