If you’re camping in Algonquin Park this weekend, you may want to take along some bottled water, or at the very least, be prepared to boil your drinking water. Ontario Parks has issued a boil water advisory for Canisbay Lake Campground, Lake of Two Rivers Campground, Mew Lake Campground, Pog Lake Campground, and the Two Rivers Store until further notice. Officials say there are potential health risks related to drinking water that hasn’t been brought to a boil for at least one minute.