Hafnarberg Sea Cliffs

Hafnarberg is where the Reykjanes lava fields end at the sea: a long rampart of dark cliff dropping sheer into the Atlantic south of Hafnir village. From May to August the ledges are loud with fulmars, kittiwakes, guillemots and razorbills — a colony of thousands, with the odd puffin among them. A marked trail crosses bare lava to the rim, the surf growing louder as you go, and opens onto ocean all the way to the horizon.