Image of Basking sharks captured at Keem Bay, Achill, by the Achill Sea Safari Facebook page.

Watch: Basking sharks complete annual return to beautiful Mayo bay

Basking sharks have returned to the waters of Achill Island.

Up to five of them have been spotted at Keem Bay in recent days.

According to the Achill Sea Safari Facebook page, they come every year to the location to feed off the rich zooplankton the waters have to offer.

Members of the public can expect to see them for the next six weeks, the platform added.