Paul,
Access to Boy Scout h.s. is easier than the others if you have a boat of some sort. From the river there only small boulders to climb over. There is more hot water there than in Gold Strike. The problem is that the pools wash away with any flash flood and must be rebilt. And the canyon has no regular care taker. So if you want to for sure soak there bring a shovel and some sand bags.
Glad to help !