Cardiff Bay became host to the 5th act of the Extreme Sailing Series 2012. The Extreme 40 catamaran measures 20 meters by 13 meters and can reach speeds of up to 75km/h. Extreme 40 Catamarans, Extreme 40 2012, Catamaran Racing, Catamarans, Catamaran, Sailing, Racing, Sail Racing, Boats, Water, Competition, Sails, Speed, Masts, Hulls, Twin Hulls, Sailing Vessels, Transport, Sea Transport, Cardiff Bay, Cardiff, Wales, United Kingdom