No special access issues
Park on the big parking lot of the Centro Sportivo Vallone (free parking) Follow the recently built, large gravel road in to the forest direction south (the road is not yet on any map, but you will find it on the crag map as a trail). After some 400 m you can see the first boulders on your left. Avoid any fire as usual in Ticino.
If you come from the village the same forest road can be reached from south from the Grotti - but there is no parking space on this side