Cobscook Bay State Park — RV Camping in Maine, US

Cobscook Bay State Park is an 888-acre natural retreat nestled in Edmunds Township, Washington County, Maine, situated along U.S. Route 1 just four miles south of Dennysville. The park wraps around three sides of Cobscook Bay, a tidal estuary renowned for dramatic tidal fluctuations averaging 24 feet — among the largest on the East Coast. With 106 campsites accommodating both tents and RVs, the park offers pull-through sites, water hookups, showers, toilets, a dump station, picnic tables, grills, and a playground. Outdoor enthusiasts can explore two scenic trails, including a mile-long forested nature trail and a 0.75-mile shore loop, while anglers and boaters benefit from a trailered boat launch. The bay teems with wildlife — bald eagles, ospreys, harbor seals, and river otters are common sights, and over 200 bird species have been recorded. Peak shorebird migration draws birdwatchers each late summer. Nearby highlights include Quoddy Head State Park, home to the easternmost lighthouse in the United States, Roosevelt Campobello International Park, and Moosehorn National Wildlife Refuge. Pet-friendly and rich in natural beauty, Cobscook Bay State Park is one of coastal Maine's premier camping destinations.