Water aerobics requires a basic swimming ability as it's mostly done in water that's waist high or deeper. Aqua aerobic workouts use a variety of techniques (some taken from studio aerobics) and the added resistance of the water helps strengthen muscles.

Variations of aqua aerobics include aqua zumba and aqua jogging. Your local centre may have their own style of water-based fitness class, so it is worth a look.

Use http://www.swimming.org/poolfinder to help locate a pool near you!