Shark Skills. Children will work on: Swimming front crawl with rotary breathing and back crawl for 100 yards, swim elementary backstroke, breaststroke, sidestroke and butterfly for 50 yards, appropriate turns for all strokes, tread water for 5 minutes, introduction to lifesaving skills including approach stroke, feet first surface dive, retrieval of object from deep water, and survival floats (Help and huddle positions) for 2 minutes.