$3 day fee. Only met two people on hike around backside of lake, recent rain closed trail for bikes, but only a little mud, most of trail is rocky, and several gulleys. Nice resting bench half way and at end of trail is cliffs w/ nice views over lake and spillway. No water running over it, but some seepage below it into creek. .
Went by nearby Ham Creek park but didn't go in. Looks like $3 day fee too. There is a hiking trail there but wasn't finished several months ago.