There are some fun scrambles in the Echo Rocks. One of my best days ever, although no technical climbing, was in that area. My bro and I were camped about 8 miles down the Grand Canyon of the Tuolumne. We hiked back to the road, repacked a little, drove down the road a bit, then hiked in to upper Cathedral Lake. It was still early afternoon, so I headed up to the plateau above the lake. I had no idea what I was doing but ended up scrambling up the descent route for Cathedral, descended, crossed the plateau to the Echo Rocks, then scrambled up 3 of the summits (class 3 and 4, maybe a little low 5th). Finally back down to the lake w/ plenty of daylight left. One full, fun day. Went back up Cathedral the next morning w/ my bro before heading out of the Park.