Seasar MHM

MAY
9
2026
Join the SEASAR MHM Medicine Hat Massacre, a team adventure race in Alberta's scenic Cypress Hills that begins in darkness for a testing nine hour course of hiking, mountain biking, paddling and bushwhacking. A 4.5 hour Lite day option allows GPS.
Sat 9 May 2026

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Event overview

The SEASAR MHM Medicine Hat Massacre is an annual adventure race held in the Cypress Hills area near Elkwater, Cypress County, Alberta, Canada. The event offers a longer and a shorter option and takes place in May. The main event is a 9-hour adventure race that begins in darkness and uses checkpoints spread around the park. Teams navigate using a map and compass.

Race format

The full event combines multiple disciplines: hiking, mountain biking, paddling, and bushwhacking to reach checkpoints. Teams compete together, with navigation by map and compass. The shorter option, called SEASAR MHM Lite, is 4.5 hours and follows portions of the larger course. The Lite event starts in daylight and allows the use of a GPS in addition to a map and compass. Both formats include route navigation between checkpoints.

Registration and equipment

Registration is required and fees vary by registration period. There is an equipment page and an equipment check; some items are mandatory. The organizer provides separate entry options for the full race and the Lite race. Visit the organization's website for the most recent information.