Single Leg Deadlift to Row
This is a great aqua exercise to improve balance and strength. Check out this exercise and its variations:
http://www.aqua-exercises.com/aquadumbbells/single-leg-deadlift-with-aqua-dumbbells
http://www.aqua-exercises.com/aquadumbbells/single-leg-deadlift-with-aqua-dumbbells