Aero Dance or Aerobic Dance Gymnastics falls under one of the 7 Aerobic Gymnastics Category. 

The sport incorporate creative combination of aerobic and dance choreography with fitness and gymnastic elements. It involves high-energy/cardio routines that maximize development of coordination, core strength, flexibility and power.
It is a fun and ludique group exercise sport which therefore helps children to build creativity,  social skills, team work.

It really is a complete and all rounded sport from 8 years old onwards.