From the 17th Oct Garth Road will not be accessible from Bryn-Y-Gog due to a Severn Trent Engineering project. During this time the bollards will be open between Maes-Y-Garth and Garth road which can be accessed from Craigfryn.
There should be a diversion sign in place from the 17th but hopefully, this map will help avoid confusion.
Click the map to enlarge