I've been there 3 times. Go during the week and not weekend. It's cheaper and the creek is less crowded. It's never too crowded but the one time I went on the weekend it was noticeably more. My theory is they get more folks through the weekdays who fish less, or don't fish at all. Definitely check out the water on the other side...The third hole, I believe they call it...you need a 4wd vehicle and one you don't baby too much!!! It's a wild ride. I'd even walk it if that's your only option. As for flies and conditions, its different every time I go there. Buggers always work. We had success with an olive weenie. When I went in may, it was dry flies all day long. Big mayflies a size bigger than what I matched on the surface, seemed to do good. We will be there April 19 - 21. I cant wait!