Iceland is full of huge rock formations. This one is Gatklettur, aka the “Hellnar Arch”. A famous, naturally formed circular stone arch found between the villages of Arnarstapi and Hellnar on the Snaefellsnes Peninsula. In the past you could even get down to the soar. It is forbidden now, probably it was dangerous because of the swirling waves. However, there is a deck where you can stand and enjoy the view.