Water aerobics...
Water aerobics (waterobics, aquatic fitness, aquafitness, aquafit) is the
performance of aerobic exercise in fairly shallow water such as in a
swimming pool. Done mostly vertically and without swimming typically
in waist deep or deeper water, it is a type of resistance training. Water
aerobics is a form of aerobic exercise that requires water-immersed
participants. Most water aerobics is in a group fitness class setting with a
trained professional teaching for about an hour. The classes focus on
aerobic endurance, resistance training, and creating an enjoyable
atmosphere with music. Different forms of water aerobics include: aqua
Zumba, water yoga, aqua aerobics, and aqua jog.