Only one diving hoop

A single diving hoop is placed sideways on the pool floor. The child swims toward the hoop, dives through it in a 180-degree arc, and then swims a few meters back along the same path. Before attempting the exercise with three hoops, it’s best to start with just one. The 180-degree arc helps the child learn how to use their hands and legs for a slow directional change with a wide radius. In the core exercise, these directional changes will need to happen much more quickly.