Lambafellsgjá
An open fissure in an oval hyaloclastite mount named Lambafell. The fissure is up to 50 metres deep. It is possible to hike along the entire fissure in the summer time. In the walls of the fissure are excellent outcrops of subglacially formed basaltic pillows.
Location: The walk takes about 1 hour. Take road to Höskuldarvöllur and then drive down to Trölladyngja. Park at the parking at Eldborg and walk east of Eldborg to Lambafell.