In this case the categories are a combination of 'most northerly' and 'most unexpected'.
But such was the dazzling sunlight and the turquoise / azure glamour of the waters of Port Ban beach, that he was unable to resist the call of the water.
Cold? Definitely. But once you've launched out, and are horizontal in the top layer of water, it's surprisingly less chilly than on first entry.
The horseshoe-shaped cove was still, and glassy-clear. Away in the distance beyond the rocks guarding the entrance to the tiny bay, the Irish Sea thundered.