Across the Lake Swim Society
(Redirected from ATLSS)ATLSS") is a non-profit society that relies entirely on sponsorships and entry fees to pay the costs that need to be incurred in order to put on the Interior Savings Across The Lake Swim (ATLS). The point-to-point 2.1 km Interior Savings Across The Lake Swim (ATLS) is the longest running, largest annual open water swimming race in Canada. The swim that began in 1949 and is held in City Park Kelowna in British Columbia in July. It is one of Canada's Top Open Water Swims.