Overview
Maine camping divides into three broad categories: national park, state park, and private. Acadia National Park holds two of the most sought-after tent campgrounds on the East Coast: Blackwoods Campground on the eastern shore of Mount Desert Island, about a 5-minute drive south of Bar Harbor, and Seawall Campground on the quieter western side near Southwest Harbor. Both are walk-to-site tent camping. RVs up to 35 feet are permitted at Blackwoods, but there are no electrical hookups in either NPS campground.
Farther north, Baxter State Park wraps more than 200,000 acres of wilderness around Mount Katahdin, Maine's highest peak. Katahdin Stream Campground sits at the Appalachian Trail's northern terminus, reached by an 8-mile unpaved gate road from Togue Pond Gate near Millinocket. There are no services inside the park: no food concessions, no gas, no cell signal in most areas. Maine's 48 state parks fill the middle ground, from Sebago Lake State Park about 20 minutes west of Portland to Cobscook Bay State Park near Lubec in far Downeast, where a 24-foot tidal range leaves the bay a different shape every six hours. Private campgrounds run from basic seasonal tent parks along Route 1 to full-hookup RV resorts near Wells and Old Orchard Beach. The Maine Travel Guide covers each region's camping landscape in more depth.
What to Expect
Maine camping, outside the remote Allagash Wilderness Waterway and some backcountry zones in Baxter, means established sites with fire rings, outhouses or flush toilets, and bear boxes where required. Dispersed camping on roadsides and random trailheads isn't a thing here the way it is out west. Sites are managed, and the better ones require reservations well in advance.
In Acadia, the free Island Explorer shuttle stops at Blackwoods Campground from late June through Columbus Day, so you can leave the car at your site and take the bus to Sand Beach, Jordan Pond, or the Cadillac Mountain base. That's a significant practical advantage in a park where summer parking fills by 9 a.m. at the popular trailheads. At Baxter, plan for the opposite situation: the gate road from Togue Pond is unpaved and slow, adding about 45 minutes from Millinocket. Water must be filtered, and the nearest fuel and groceries are in Millinocket, 18 miles from the gate.
Coastal campgrounds east of Portland run dense in July and August. Neighbors are close at the popular sites, and generators often have restricted hours. If you want quieter camping with more space between sites, target the shoulder: mid-June before schools let out, or early September when the weather along the coast is often the most stable of the whole season. One thing that catches first-timers off guard: black flies are serious business from mid-May through mid-June inland and in the Highlands. A head net and DEET with at least 30% concentration are standard kit for North Woods camping during those weeks.
Best Season for Camping in Maine
Most Maine campgrounds open around Memorial Day weekend in late May and close after Columbus Day in mid-October. Blackwoods in Acadia runs year-round, though water is shut off from November through April and restrooms close for the season. Winter camping at Blackwoods is possible for self-sufficient parties with cold-weather gear, but services reflect the off-season.
July and August are peak season: warmest days, longest evenings, and the most demand. Ocean swimming at Sand Beach in Acadia is possible in this window, with water temperatures around 58 to 60 degrees Fahrenheit even in August. Cold by most standards, but swimmable. Late September through early October is the strongest value window, especially for Baxter State Park and the Highlands. The interior leaf color peaks in late September, hiking conditions on Katahdin improve with cooler temperatures, and the crowds thin considerably. Katahdin trailheads close around mid-October when the summit weather becomes unreliable.
Sebago Lake State Park and the southern campgrounds near Wells, Kennebunkport, and Old Orchard Beach hit their stride from late June through Labor Day, with the lake reaching comfortable swimming temperatures by early July. Spring camping in Maine before Memorial Day means cold nights, some frozen ground at elevation, mud-season roads in the interior, and black flies starting to emerge. It's doable, but most visitors skip it.
Typical Costs
The following are labeled estimate ranges and may change by season or year:
NPS tent sites at Blackwoods Campground and Seawall Campground run around $30 per night at peak (estimate), with reservations required May through October on Recreation.gov. Baxter State Park charges $15 to $25 per night for Maine residents and $25 to $35 per night for nonresidents (estimates), with sites booked through baxterstateparkauthority.com starting in early January for the season ahead. Maine state park campgrounds typically run $25 to $45 per night for standard tent sites, with electric hookup sites at parks that offer them running $35 to $55 (estimates). Reservations go through campwithme.com. Private campgrounds with full hookups (electric, water, sewer) near Old Orchard Beach and Wells run $55 to $95 per night at peak summer rates (estimate), dropping 30 to 40 percent after Labor Day.
A night at camp pairs naturally with a lobster dinner at a roadside shack or pound. See our full picks on the Best Lobster Shacks in Maine page, or go deeper into Lobster and Seafood in Maine for the full picture on where and how to eat it well.
How to Book
Acadia reservations on Recreation.gov open six months before arrival date. The January 1 release for peak July and August sites sells out within hours on the morning it drops. Set a calendar reminder, have your credit card and Recreation.gov account ready before midnight, and book exactly at 7 a.m. Eastern when the window opens. Seawall operates on a mix of advance reservations and walk-in first-come sites in the shoulder season, which makes it a reasonable backup if Blackwoods is full.
Baxter State Park's most popular trailhead campgrounds, including Katahdin Stream and Roaring Brook (both access Katahdin summit routes), open for reservations in early January and fill within days. Day-use parking at Katahdin trailheads also requires a vehicle reservation in season, separate from camping. The park's online system at baxterstateparkauthority.com is the only way to book; there are no walk-ins for the main Katahdin sites in summer.
Maine state park reservations through campwithme.com typically open in April for the full season. Private parks vary widely: peak-weekend sites at popular southern coast parks fill 12 months out, while midweek openings in September are often available with a week or two of lead time. If you're putting together a longer coastal trip, the Maine Coast Road Trip itinerary builds in practical campground staging along Route 1. And if you're planning evenings around craft beer after a day outdoors, the Breweries page maps out the best stops from Portland north. Many coastal campgrounds also sit within easy reach of Tour Operators and Charters running kayak tours, puffin trips, and sunset sails out of the nearby harbors.
Frequently asked questions
Do you need reservations to camp in Maine?
For any popular campground between Memorial Day and Columbus Day, yes. Blackwoods and Seawall in Acadia, Katahdin Stream and Roaring Brook in Baxter, and the most-visited state parks all require advance reservations. Walk-in camping exists at some state parks on slower weekdays, but don't count on it for summer weekends on the coast or in Acadia.
Can you camp for free in Maine?
Free dispersed camping is limited in Maine compared to western states. Some Maine Bureau of Public Lands parcels allow primitive camping with a permit. Along the Allagash Wilderness Waterway, designated campsites are available for a modest fee per person per night, currently around $8 to $10 per person (estimate). Outside of those managed wild lands, established campgrounds with fees are the norm.
Are RVs allowed in Maine state parks and Acadia?
Acadia's Blackwoods Campground accepts RVs up to 35 feet but has no electrical or water hookups. Dump stations are available at Blackwoods for a fee. Many Maine state parks have RV-compatible sites, though hookups vary by park. Sebago Lake State Park and several southern coast parks have electric sites. Baxter State Park limits vehicle size and strongly discourages large RVs on its unpaved roads.
When are black flies bad in Maine, and how do you deal with them?
Black fly season runs roughly mid-May through mid-June, peaking in late May in the Highlands and North Woods. The coastal areas see fewer flies than the interior. A head net worn over a baseball cap, long sleeves, and a DEET repellent at 30% or higher concentration make the difference between a miserable trip and a manageable one. After mid-June, the flies drop off sharply and most camping in Maine becomes comfortable without heavy protection.