Updated July 15, 2021: Whistler, B.C. – The Resort Municipality of Whistler (RMOW) has received reports of Swimmer’s Itch in Alta, Alpha and Lost Lakes. Swimmer's itch may also be present in other lakes in the Whistler area.
Following reports of Swimmer’s Itch, notice signs have been posted at Municipal beaches with information about how to reduce the risk. There is no way to avoid Swimmer's Itch entirely but you can reduce the risk by swimming off docks, not wading in the shallow water and showering off immediately after leaving the water. Outdoor showers can be found at Lost Lake, Wayside, Lakeside and Rainbow beaches.
Swimmer's itch is a temporary rash caused by naturally occurring microscopic parasites. The rash is irritating but is not dangerous or contagious and symptoms generally clear within two weeks. Swimmer's itch occurs in both freshwater and marine coastal environments and is not related to the quality of the water.
The water quality of Whistler's major beaches is monitored closely. RMOW fish and wildlife technicians collect weekly samples from Lakeside, Wayside, Alpha Lake, Rainbow, and Lost Lake parks from Victoria Day through the Labour Day weekend in partnership with Vancouver Coastal Health.
Visit www.whistler.ca/beachwatermonitoring for more information.