Northern gannets dive-bomb into the sea off the coast of Iceland during a feeding frenzy.

Writes the filmer: "The northern gannet is the largest seabird around Iceland.

"This video is taken onboard a whale-watching tour from Keflavík in Iceland.

"The wind was strong and sea conditions difficult. We came across this huge flock of northern gannets plunging themselves into the water after fish close to the opening of Faxaflói Bay, not far from the small fishing town Garður."

"It is difficult to say what exactly the birds were feeding on but likely sand eel."

The northern gannet is the largest seabird around Iceland.

This video is taken onboard a whale-watching tour from Keflavík in Iceland.

The wind was strong and sea conditions difficult. We came across this huge flock of northern gannets plunging themselves into the water after fish close to the opening of Faxaflói Bay, not far from the small fishing town Garður.

It is difficult to say what exactly the birds were feeding on but likely sand eel.