Btw... Blakeney is totally awesome right now, and not as sketchy as I once thought.
The upper part is the hardest, but you could put in and just run the lowest part.
The upper part has a couple moves you need to make, and screwing them up would not be fun.
Also, it has a few class 4+-5 drops on the right side, the water looked a little low to run any of them right now, but they would probably be good at a bit higher level.
Note level was about 63 when we were on it. I would say it would be good to go a bit lower, but not much. The top half was getting rocky.