The Puffin Run in Westman Islands
The Puffin Run is a 20-kilometer trail race circling Heimaey in Iceland's Westman Islands, drawing more than 1,300 runners each early May to coincide with puffins returning to nest on the island's cliffs. The course crosses lava fields and volcanic slopes shaped by the 1973 Eldfell eruption, with relay options alongside the solo distance.
The Puffin Run circles Heimaey, the main island of Iceland's Westman Islands archipelago, on a 20-kilometer trail course that organizers bill as the country's largest off-road running event, drawing more than 1,300 participants.