Ultra

ultra33UltraSwim 33.3 offers you the opportunity to complete the iconic 33.3km distance of the English Channel, spread over 5-7 swims, over a 4-day long weekend in stunning locations around the world.UltraSwim 33.3 offers you the opportunity to complete the iconic 33.3km distance of the English Channel, spread over 5-7 swims, over a 4-day long weekend in stunning locations around the world.