No special access issues
From Arco: 1h, 43km by car, 5min approach on foot.
Google maps will bring you to the right place if you search for Serrada, Trento or Ristorante Cogola.
Alternatively - and the easy way - just hit the navigation button right top in the app...
Do not park at the restaurant, but across the street on the big parking.
On Foot, cross the road back towards the restaurant. Follow the stonewall on the outside towards the East (left) and follow the path. At the crossing, take a right turn , just like the sign shows. In just a few minutes, you arrive to the first routes.