Climb straight up to the roof. Route is on the right side of the roof, where there is a nice rounded out spot for the rope. At the roof if you go left, it is more difficult 5.10ish, right is easier 5.9.
On top of middle tower, go towards the back, facing the lake, and the climb is on the wall to your right, just past the boulder stack. This route is straight down on the left side of the roof consisting of parallel cracks.
Use the large boulder structure to setup the top rope. You will see a nice groove to put the runners.