No special access issues
Refer to the map for the parking spots and the approach routes. On nice weekends in the winter time the main parking is often full. So prepare yourself to drive to one of the other parking and walk a bit further. Do not park in the road. It is used by buses!
Even better: Galerie can be reached quite OK by public transportation: take the train to Ziegelbrücke and then a bus to Amden, Lehni. This bus stop is at the same location as the parking 2, about 10 minute walk along the road to the start of the trail