Choose 100 miles, 100km, 50km, 22km, 8km or 8km Night Trail in one of Sweden’s most biodiverse and beautiful regions. 11-13 September 2026 will be the fifth edition of the Sörmlands 100 Trail Run.
100 miles running south from Mariefred the picturesque town on the banks of Lake Malaren to the beautiful coastal village of Navekvarn. 2700 vertical metres of climbing.