Clouds Rest from Happy Isles in the Valley and back took me 8 hours round trip a few weeks ago. I had 30 minutes on the top, otherwise I didn't stop and moved fast. So it can be done, though the last section from the base of the Pinnacles was tiring. The paths are all straightforward, it just goes up and up and up. A fabulous climb, if you have the energy.by AndrewDoig - General Discussion