Solo winter ultra endurance race (run, bike or ski) through Estonia’s second largest islands vast forests & bogs that runs on snowy/icy/muddy rough trails and paths. Fantastic singltrack! Racers will be taken to start by bus from finish/race center. Note that race course is partly marked! Participants need to navigate by map or GPS and carry mandatory equipment to survive in the harsh conditions! Race course is varying in difficulty - sometimes easy, but sometimes tough terrain - mud, fallen over trees etc.. Snow conditions may vary - we've had none or 1 meter of snow in previous events! 101km race is the main original race! Organizer is Estonian ACE adventure team!