Dive into Swimmer 4! Intermediate swimmers will swim 5m underwater and master greater lengths of front crawl and back crawl; swimming 25m of each. They will also be introduced to whip kick on their front, and breaststroke arms and complete the Canadian Swim to Survive® Standard. They will cap it all off with a front crawl sprint for 25 m and 4 x 25m front or back crawl interval training. The ratio for this level is 8 swimmers to 1 instructor. Prerequisite: Swimmer 3; Ages 5 to 12 years.