In western Washington, Puget Sound creates an immense playground of beaches, bays and islands linked by America's largest ferry system. Go clamming along the Pacific, whale watching in the San Juan Islands or exploring on the cedar-shrouded Olympic Peninsula. Enjoy a day in Seattle. Within a day's drive of most Washington campgrounds are the peaks of Mount Rainier or Mount Baker, rising above the Cascade Range. Mountain towns like Winthrop and Leavenworth position you for outdoor fun with RV parks, cabin rentals and tent camping. Out east, grand western rivers like the Snake, Columbia and Yakima roll through sunny high-desert hillsides striped with vineyards.