Subwing, a new way to explore the seabed Subwing is an underwater wing towed by a boat at a speed of 2 to 4 knots (4 to 7 km/h) which allows to explore the underwater world in a playful and original way. Discover this rather clever underwater gadget developed by a Norwegian company. Chloé Torterat Published on February 25, 2016 More articles on the theme snow sports