Challenging hike. I started at the north end of the blue loop and went counterclockwise, and I think that's the best way to tackle it. Would not want to come down Cobble Mountain the opposite way. There is one very tricky section just as you start to climb up Cobble Mountain where you have to hoist yourself up some big rocks. I managed to do it hiking alone but it was a little hairy. The views from the top were worth the effort. After Cobble Mountain there are some more vistas along the way, then you head down into forest and descend down to the brook. A bit more rock scrambling there. I took a quick break for a snack at the brook then headed up the other side of the blue trail, which has some sustained, gradual climbing but no real views. Just some nice forest hiking. Eventually the blue trail descends again down toward a campsite. You can walk along the road there and cut the loop short if you want, but I did the entire blue loop back to my car, with some more ups and downs and a little more rock scrambling at the very end. Rewarding hike, but I would not do it in any kind of bad weather. Proper footwear a must.