Where is a good place for someone in fairly good shape that would like to do a 3-day hike? I plan on getting there towards the end of July maybe the 22-25 or something like that. I'm looking for something challenging, secluded, and does not require much or any climbing gear. It doesn't have to be at Rainier. I'm in St. Louis, so I'm just trying to venture out for a 3-day hike.