gphoto120,
Actual rugged ocean shoreline is about 2 hrs. + away on the Olympic Peninsula (see Kalaloch on the map, for example). However, there is a lot of Puget Sound shoreline available within an hour. You can take ferries to Bainbridge Island, Vashon Island, and Whidbey Island within that timespan. Whidbey might just be the ticket, as it has much to offer in the way of shoreline and general rustic beauty. It also has an old WWII lookout fort ( Fort Casey), which has interesting concrete bunkers along the beach front.
PM me if you'd like more info.
Rob Vinnedge