The ‘Wapusk Trail’ road (752 km (467 miles) in length) constructed each year between Gillam, Manitoba, and Peawanuk, Ontario, Canada, is thought to be the longest seasonal winter road in the world. Constructed each January on snow and ice, it gives road access for a few weeks to remote settlements around Hudson Bay until the warmer March weather forces its closure. These settlements are normally only accessible by air.

Wapusk is Cree (a Canadian First Nation) for Polar Bear.