In the shallow area, bend your knees until your shoulders are in the water. Hold the dumbbells with both your hands. Open your arms to the side parallel to the bottom of the pool.
Push the dumbbells down with straight arms as deep as you can then open your arms again.
Inhale when you open your arms. Exhale when you close.
Feel your lat muscle as you push down. If you are using the aqua paddles you will feel the resistance in your deltoid as you open your arms as well.