The Masters Swimming Canada 10k National Championship are hosted by L.O.S.T. Swimming
in Lake Ontario on 11 August 2012. It is organized by Rob Kent
L.O.S.T. Swimming is an open water swimming and triathlon group in Oakville, Ontario, Canada. L.O.S.T. stands for Lake Ontario Swim Team. It also hosts the annual 3.8 km L.O.S.T. Race.