The world's northernmost marathon attracts every year runners from over 50 nations, who compete at night, but in broad daylight – courtesy of the midnight sun, which doesn't set in this part of Arctic Norway from mid-May to mid-July. The marathon itself is the main event, but there is also a half-marathon, a 10-kilometre race, a 4.2-kilometre fun-run, and a children's race, so the whole family can take part. Please note that pre-registration is necessary.