No special access issues
🚗 Arrival:
Coming from Mayrhofen, go East, taking the toll road / tunnel into the Zillergrund. At the end of the tunnel, go left. Now the way is straightforward and you have to keep following the main road for 11.5km and get to the In the Au Gasthaus where you have to leave the car. The owners of the inn are friendly and we suggest having some meals with them.
🚶♂️ Boulder area:
From the car park, take the dirt road that heads into the Sundergrund. Just follow the road to reach the sectors (the first ones are at about 5 mins from the car park, the last ones at about 20).