No special access issues
The road up to the valley is only open from July 15th to October 15th due to reindeer herding. Climbing can be done in the valley outside of this window but one has to be willing to walk in.
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The seasonal road block (marked with a parking icon on the map) is 7 km down the road from the Lower Valley parking (and 13 km from the upper valley sectors!), and then it's a further 20-25 minutes approach to the Lower Valley sector.
There is another roadblock right by the Tranquility boulder that is closed all year. Therefore one has to walk in to the sectors Waterfall (1 km), Glacier Polish (1,5 km), Fragments (600 m) and Reinoksskardet (1,3 km).
🏃♀️To get to the sector Lower valley, park as marked on the map. Walk from here a little back down the road for about a 100 meters. Here you'll se a clearing of trees. Walk straight up on the right side of the clearing and more or less follow a small stream all the way up to the boulders. To describe the specific walk in access to the rest boulders here is complicated as Gjerdalen consist of many smaller collecions of blocks. Rely on the GPS coordinates and trails.
There are no climbing related access isues.