1. Some rays go "flap-flap" with their fins, swooping through the water like little sea-birds.
2. The rays wave their fins up and down, dancing like feathered friends under the waves.
3. Watch the rays do a fin-flap, bobbing up and down as if they were flying through the ocean sky.
4. Rays flap their fins like birds, zooming and twirling in a watery sky—whoosh!