I need some advice on a road trip I want to take in June in Washington state. I'll have 5 days in which I'll have a rental car and I can't seem to decide on the route I want to take. I'll be leaving on Thursday, June 16th early in the morning from downtown Seattle. I have to be at my SeaTac hotel late at night on Monday the 21st (flying to LAX the next morning). I'll be travelling alone and right now I'm veering towards camping. I already have all the camping equipment, but I might stay at a nice local inn if available.
My problem is that I can't decide on which area to go. I like to hike and I like to go to secluded places, trying to avoid the crowds. I've been to Washington state three times previous and I've seen Olympic National Park twice (did the Hoh and Quinault rainforests, went to Hurricane Ridge, camped on the beach on the western coast at Chilean memorial, and visited a number of beaches like Ruby beach) and I've also been to Mt. St. Helens twice, once at the visitor center and once to hike up to the crater rim from the south. Besides that I haven't seen much from the state, except the Snoqualmie Falls area and the I-5 from Seattle to Portland.
I'm split between the North Cascades NP, Mount Rainier NP and going back to Olympic NP (especially the beachcamping). But I'm afraid that both the North Cascades and Rainier areas will still have a lot of snow, thereby limiting the hiking options significantly. Am I correct in assuming that?
Which areas/route would you recommend that would fit in 5 days? Am I missing other beautiful places that would make a great road trip?