Just me and the water! No water tools for this exercise. Using arms and legs to stay a float in the deep end. I always finish out with treading the water after the rest of my pool routine. 3 minutes is my challenge. I either cycle my legs like I’m riding a bicycle or kick them out and in as my arms go from back to front. Definitely keeps you challenged as the goal is not to “sink” but keep your head above the water!