This incredible drone footage shows a school of ray swimming in the waters off Bondi Beach this morning.

The rare event, captured by Drone Shark App, shows the school of Cownose Ray swimming in the crystal clear waters of Sydney's most iconic coastline.

Australia has two different species of Cownose Ray and according to Drone Shark App, which provides drone footage for surfers and shark alerts for beachgoers, it is unusual to see the ray this far south.

This drone footage captured a rare sight in Sydney's waters. (Supplied)

The marine animals are usually found in large schools and are often seen close to the water's surface.

They are also well recognised for their unusual bilobed head.

The school of Cownose Rays were spotted in waters off Bondi. (Supplied)