A windy meteorological station has been built on Stórhöfði (122m), the rocky peninsula at Heimaey's southern end. It’s linked to the main island by a narrow isthmus (created by lava from Helgafell’s eruption 5000 years ago), and there are good views from the summit. There's also a small birdwatching hut for puffin viewing about halfway up the hill; go from the first turnout on the right to the end of a trail across sheep pasture, marked with a hiking sign.
It’s possible to scramble down to the isthmus' boulder beach at Brimurð and continue north along the cliffs on the east coast, returning by a road just before the airport. From June to August Kervíkurfjall and Stakkabót are good places for puffin viewing.