Deception Pass State Park. Credit: Karen Neoh/Flickr CC
Deception Pass State Park
Deception Pass State Park is a popular campground on the north end of Whidbey Island, about a 90-minute drive from Seattle, near the town of Anacortes. The iconic Deception Pass Bridge nearby connects Fidalgo and Whidbey islands. A look over the edge of the bridge can shake the knees of even the not-afraid-of-heights types in your crew, but the view is incredible.
The state park has some 300 campsites available in different loops. Cranberry Lake offers swimming, and there's plenty of Puget Sound shoreline to explore as well. This campground is popular; aim for a weekday stay this summer, or watch for a weekend cancelation. Reserve online.