This is Eric here from the Adventure Geeks. Gotta say one of my favorite places to hike in is Olympic National Park. Amongst the mist vines and moss cling to every rock and tree. Heavily reminds me of Endor from Star Wars.
Though I was only there for three days, I got to hike beautiful Mount Storm King which overlooks Crescent Lake (one of the staples of the park).
Overall it was the calmest and most quiet of the seven National Parks I have visited.