In the Nordic countries we have the opportunity to experience the midnight sun. This natural phenomenon will make the sun to be visible 24 hours a day if you are above the Arctic circle, given fair weather.

The Midnight sun is visible from the End of May until the Mid of July

Please find more info about the days on

1024px-Midnattssol-fra-Fjellheisenpicture: Midnight Sun from the Cable Car in Tromsø on June 30 2009.