Take a hike up a mountain in Mt. Baker national park and you can stay at this fire tower lookout. The hike is less than 2 miles but is steep, so this is backpacking after driving to the end of a rugged jeeps-only kind of road. They provide beds, outhouse, and a kitchen, you bring everything else and pack it all out, just like backpacking. Views are great and there’s wildlife and wildflowers and wild berries (if you go the right times of year).