Kairacross Vätsäri is an adventure and endurance race where the goal is to navigate a route of up to 300 kilometers as quickly as possible—either completing the full course or covering as much as possible within a 100-hour time limit.

Participants traverse the wilderness on foot and by water using a lightweight but durable packraft.

The team-based competition is suitable for anyone capable of surviving four days completely self-sufficiently in the wilderness.