Seawall Campground sits on the west side of Mount Desert Island, about 4 miles south of Southwest Harbor and roughly 18 miles from Bar Harbor. Unlike the more crowded eastern side of Acadia, this campground offers something increasingly rare in the park: every single one of its 202 sites is within a short walking distance of the coastline. That proximity to the ocean - coupled with the fact that reservations are required and sites fill fast - makes it a smart choice if you want access to the quieter half of the island. This guide covers what you need to know about booking, site types, nearby activities, and the quirks of camping here that the park website doesn't always spell out.
Campsites at Seawall Campground (2026 Guide) — Planning Tips
7 min read
Seawall Campground sits on the west side of Mount Desert Island, about 4 miles south of Southwest Harbor and roughly 18 miles from Bar Harbor.
Plan your visit with complete visitor guide, all campgrounds, and hiking trails.
For a broader look at everything this location offers, check out the complete visitor guide covering the west side of Mount Desert Island.
Site Types and What They Actually Cost
Seawall Campground has five distinct site categories, and the differences matter more than you might expect. All sites are non-electric - there are no hookups anywhere in this campground.
Standard Non-electric sites run $30.00 per night as of 2026. These are the most common option and work for tents, vans, and smaller RVs. The 59 RV sites fall into this same $30.00 rate, though you will want to check length restrictions when booking - the park's reservation system lists maximum vehicle length per site.
Tent Only Non-electric sites also cost $30.00 per night. There are 43 of these, and they are exactly what the name suggests: no vehicle parking at the tent pad itself. You park in a nearby lot and carry your gear in. This keeps these loops quieter.
Walk-in sites are the budget option at $22.00 per night. These require carrying your gear farther from the parking area. Worth noting: the $8 savings per night adds up over a weeklong stay.
Group Tent Only Area costs $60.00 per night and accommodates organized groups.
One thing the reservation page does not emphasize enough: park entrance fees are separate from campground fees. You pay the camping fee plus the park entrance pass. Buy your Acadia National Park pass online before you arrive to skip the line at Hulls Cove Visitor Center.
The West Side Advantage
Most first-time visitors to Acadia camp on the eastern side of the island - Blackwoods Campground sees the bulk of reservation traffic. But Seawall gives you something the east side does not: direct access to the quieter trail network and fewer crowds at peak hours.
Trails within walking distance
From the campground you can walk directly to two excellent coastal hikes. Ship Harbor Trail is a 1.3-mile figure-eight loop. It is flat, family-friendly, and good for birders. Early morning is your best bet for spotting waterfowl working the tidal pools. The trail leads to a rocky shore with views of the open Atlantic.
Wonderland Trail is a similar coastal walk - shorter, about 30 to 60 minutes round-trip. It is popular for tidepooling at low tide. Rangers will tell you to never turn your back on the ocean here; the tide comes in faster than most people expect. Bring shoes you can get wet, and check the tide tables before heading out.
Day hikes worth the drive
The west side has a handful of short, rewarding summit hikes. Beech Mountain Trail is a moderate loop that gives you views of Long Pond and Mansell Mountain. Flying Mountain Loop runs 1 to 2 hours and is steep enough to count as exercise but short enough for families with skilled young hikers. Acadia Mountain stands 681 feet tall and offers views of Echo Lake and Somes Sound - hike it as a loop using the Island Explorer bus.
The Island Explorer bus system serves this side of the island and can connect you to trailheads without needing to move your vehicle. It runs seasonally and is free.
Booking, Season, and What to Expect
Seawall Campground opens seasonally, typically from the Wednesday before Memorial Day through Columbus Day. As of 2026, the off-season closure runs from October 15 to the third week of May. The ranger station is generally open from 9 AM to 8 PM during peak season, though hours shift depending on staffing levels.
Reservations are required. You cannot just show up and grab a site - the walk-in option requires advance booking too. Reservations open on a rolling window through Recreation.gov. For July and August dates, book as soon as your window opens. Many sites are claimed within hours of release.
What the website does not mention
The campground has no electric hookups, no showers, and no dump station. There is potable water and flush toilets. Cell service drops out at unpredictable points along the west side. Verizon tends to work better than other carriers near the campground entrance, but do not count on streaming anything from your tent.
The campground is set back from the water behind a band of spruce and fir. You can hear the surf from most sites, but you will not see the ocean from your tent. The payoff is that the walk to the shore takes about three minutes.
Many sites are not level. If you are using a tent, bring extra guylines and practice your taut-line hitch. RVs will want leveling blocks. The ground is rocky in places - standard tent stakes may bend. Bring shepherd's hook stakes or heavy-duty alternatives.
Wildlife and Practical Realities
The west side of Mount Desert Island sees more deer than the east side. Keep your food stored in hard-sided containers or bear-proof canisters inside your vehicle overnight. Raccoons are persistent. Do not leave anything with a scent on your picnic table.
Moose are uncommon on MDI but not impossible. Black bears exist on the mainland but are rarely seen on the island itself. Your bigger concern is the peregrine falcon closures that take effect March 1 each year. As of 2026, Jordan Cliffs Trail, Penobscot East Trail, Precipice Trail, and Valley Cove Trail are closed during nesting season. Rangers strictly enforce these closures. Check the park alerts page before planning hikes on the east side.
Current alerts affecting access (as of 2026)
Three active closures will affect your visit:
- Cadillac Summit West Parking Lot - closed through May 19 for construction
- Park Loop Road detour - a section from Kebo Street to Sieur de Monts is closed April 13 to June 12 (excluding Memorial Day weekend). Motorists are detoured onto Mount Desert Street and Main Street following Route 3
- Peregrine falcon nesting closures - several cliffside trails closed through the breeding season
None of these directly block access to Seawall Campground, but they may affect your driving routes and hiking plans on the eastern half of the island.
Campsite Selection Tips
Not all 202 sites are equal. Here is what experienced campers look for:
Sites near the B loop tend to have better tree cover and more privacy between neighbors. Sites along the outer edge of the loops are slightly quieter - less foot traffic from people walking to the restrooms. Sites near the restroom buildings get more light and noise at night.
If you want the shortest walk to the water, look for sites on the ocean-facing side of the campground. The trail to the shoreline crosses Seawall Road and enters the Wonderland Trail network. From the far end of the campground, the walk to the shore takes about five minutes.
Groups larger than six people need to book the Group Tent Only Area. The $60 per night rate works out to $10 per person for a group of six - reasonable by national park standards.
For a complete breakdown of every camping option in the park, including Seawall's differences from Blackwoods and Schoodic Woods, refer to the guide to all campgrounds in Acadia.
Practical Takeaways
Booking: Reservations required. Book through Recreation.gov as soon as your window opens. For summer 2026, that means planning months ahead.
Gear: Bring sturdy tent stakes, a headlamp, and leveling blocks. No hookups means you need to be self-sufficient on power. A solar panel or extra battery pack helps.
Food storage: Store all food and scented items in hard-sided containers inside your vehicle overnight. Raccoons know how to open coolers.
Timing: Arrive before the ranger station closes if you want help finding your site. Sites are not signed as clearly as at Blackwoods.
Weather: Coastal fog rolls in without warning, even in August. Bring layers, a rain jacket, and a sense of humor about damp mornings. The fog usually burns off by late morning.
Transportation: The Island Explorer bus stops near the campground entrance. You can leave your car at your site and ride the bus to trailheads, Jordan Pond House, and Bar Harbor. The bus does not run in the off-season.
Final Thoughts
Seawall Campground is not the most convenient base for hitting the Park Loop Road or summiting Cadillac at sunrise - you are looking at a 30-minute drive to those destinations. What it offers instead is something rarer: a quieter corner of Acadia where you can walk to the water from your tent, hike coastal trails without fighting for parking, and sleep to the sound of surf through the trees. If your goal is to spend less time in traffic and more time on the west side's underrated trail network, this is the campground to target.
Reservations open early. Know which site type you want before booking day arrives. And bring extra tent stakes - the ground here has its own opinions about what stays put.
Sources
- Official source: National Park Service nps.gov/acad/planyourvisit/seawall-campground.htm
- Official source: NPS — Acadia National Park nps.gov/acad/index.htm
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Location data courtesy of the National Park Service (U.S. Department of the Interior). NPS data is public domain. Official NPS page.
Images: NPS; NPS; NPS; NPS; NPS.
Map data © OpenStreetMap contributors.
Weather data: Open-Meteo.com.
Park operations alerts: NPS.gov · Weather hazards: National Weather Service · Live conditions.
Information may change. Always verify fees, hours, and conditions directly with the official source before visiting.
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