Aqua aerobic is an aerobic workout and can be performed in water by using your own body to create resistance against water also u can use aqua dumbells which are basically floats and foam noodles . It is the most safest form of exercise which can be performed by any body and everybody. From kids to senior citizens each one gets something out of it. If anybody has any kind of joint issues like knee, shoulder, back pain etc even they can do this. Highly recommended in summers and also through out the year.