Marathon de Glace (Sea Ice Marathon)

The Marathon de Glace, or Sea Ice Marathon, is a winter running event held in Luleå, Sweden. The races take place on the frozen Gulf of Bothnia, meaning the running surface is ice, not typical road, track, or trail. Participants can select from 5 km, 10 km, a half marathon, or the full marathon distance of 42.195 km. Although classified as a road race, its unique setting offers a cold-weather run on sea ice, surrounded by snow and nature. The course is straightforward yet unique: a race on sea ice in a Swedish coastal city near the Arctic Circle, where winter conditions are an inherent part of the event. The shorter race options cater to those seeking the ice-running challenge without the full marathon commitment, while the marathon is for participants prepared for an extended period on a frozen sea surface. A concise review notes, "It's likely to be cold," providing a practical expectation for potential runners.