Grønnløypa flyt 1 Kalnesskogen, Sarpsborg, Viken, Norway 1.4km|29m ◢ ◣ 4m|28.04.2020 Open in the Trailguide Web App Description Excellent flowtrail. This trail used to be for the local MTB club loop, but is now a part of the running routes. It is frequently used by runners, hikers, dog-walkers and occasionally by horses, so take care and slow down.