From the parking area, looking away from the beach, follow the paved road up the hill. The mountain will be to the left. After 500-600 meters, there is an old path up to the mountain pass on the left. If you hit the lake, you've gone too far.
Climb a short, steep section up a couple of switchbacks, then enjoy the views as the trail flattens and the grade remains easy for a little over a half mile. After the second pond, there is a junction. Stay right to continue on Himmeltindan Trail which veers toward the mountain.
About 0.8 miles in, the trail begins to step as it climbs the mountain. The trail is pretty well-worn so it is easy to follow. After about 1.8 miles of running, you'll work your way around the ridge, following the contour just below it. The summit will appear here for the first time. If it is clear, the north summit should be straight/left with a radar tower on it. The south summit, which is the runner's destination, is more to the right.
We stopped about 100 meters shy of the summit because of a steep snow crossing in mid-June. I cannot comment on how to traverse the remainder to the summit because we were unable to complete the last section (see Need to Know section of the Himmeltindan
featured run). However, the trail hooks back south and climbs the rocky edge to the top. Despite not being able to summit, the views were spectacular from the ridge that we made it to, and the summit was within view.