Hafnarhólmi
A superb spot for bird-watching, at Hafnarhólmi, you can climb a the staircase leading up to a viewing platform to see puffins up close without risking life and limb on the cliffs. You'll also see other seabirds such as kittiwakes and fulmars. About 10,000 pairs of puffins nest here from mid-April through mid-August, then spend the winter at sea.