Watch: Incredible drone footage shows part of Mayo in its full glory
It's Ireland's most famous sea stack.
Rising over 150 feet from the wild Atlantic Ocean, Dún Briste at Downpatrick Head, County Mayo, resembles a giant slice of petrified gateau.
In what could be a casting location from Game Of Thrones, the separated headland sits just off the shore of one of Ireland's World War 2 markings, 'Eire 64'.
This was carved into the landscape to let wartime fighter planes know that they had reached neutral Ireland and not the UK. It is one of 82 such markings around Ireland's coasts.
We took a DJI Phantom 4 drone out to get a closer look.