Waterton Park, Canada offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Waterton Park is known for Waterton Lakes National Park and the Prince of Wales Hotel. The best time to visit Waterton Park, Canada, is from June to September, with average air temperatures ranging from 50°F to 75°F and water temperatures around 50°F to 60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!