Acadia National Park: Visitor Guide

Acadia National Park occupies most of Mount Desert Island off the coast of Maine, with additional sections on Isle au Haut and the Schoodic Peninsula. It is the only national park in New England and sits at the meeting point of boreal forest and northern Atlantic coastline — a landscape of exposed pink granite, glacial lakes, ocean cliffs, and summit views that stretch to Nova Scotia on clear days.

Entry Fees and Passes

Entry costs approximately $35 per vehicle as of 2026 (valid for seven days, covers all occupants). Motorcycles pay approximately $30; individuals on foot or bicycle pay approximately $20. The America the Beautiful annual pass ($80) covers entry.

Cadillac Summit Road timed entry (separate from park entry): Required May through October to drive a personal vehicle to the summit of Cadillac Mountain. Reservations cost approximately $6 per vehicle and are released via recreation.gov in rolling windows 90 days ahead. Sunrise reservations (5am–7am window) are the most competitive — often sold out within minutes of release.

When to Visit

Late September through October: Our recommended window. Fall foliage on the island is spectacular from late September through mid-October. Summer crowds have left, all trails and carriage roads are open, and temperatures are 50–65°F. Lobster season is in full swing — Maine lobster rolls from approximately $22–30 at Bar Harbor restaurants.

July–August: Peak season. Bar Harbor fills completely; parking in the park can be extremely limited. The Island Explorer shuttle bus is the best strategy. Temperatures are 65–80°F with cool evenings. All facilities, boat tours, and programs are at maximum operation.

May–June: Shoulder season. Fewer crowds, migrating shorebirds, lupine wildflowers in June along the roadsides. Water temperatures are too cold for swimming.

November–April: The park stays open but many facilities, boat tours, and carriage road rental operations close. Snowshoeing and cross-country skiing on the carriage roads. Ice climbing on the Jordan Cliffs (experienced climbers only). The park is quiet and genuinely beautiful.

Getting There

From Bangor, ME (49 miles to Bar Harbor, approximately 1 hour via ME-3 S): Bangor International Airport (BGR) is the closest airport with regular scheduled service. Car rental from approximately $55/day. The most practical approach.

From Portland, ME (160 miles, approximately 3 hours via US-1 and ME-3 S): A viable road-trip leg from Portland, which is itself a popular destination.

From Boston, MA (280 miles, approximately 5 hours via I-95 N and ME-1 A): Common for drive-in trips from New England. Allow a full day for the drive in summer when coastal Maine traffic is heavy.

Island Explorer shuttle bus (late June through Columbus Day): Free bus system connecting Bar Harbor, campgrounds, and major trailheads throughout the park. Funded by Friends of Acadia. Eliminates parking stress in peak season — park on the outskirts of Bar Harbor and shuttle in. Check schedule at exploreacadia.com.

Must-See Trails and Attractions

Cadillac Mountain Summit — At 1,530 ft, the highest point on the US Atlantic coast north of Brazil. The first place in the continental US to see sunrise for part of the year. Drive (timed entry required May–October) or hike via the South Ridge Trail (7.1 miles round trip, strenuous, 4–5 hours). The North Ridge Trail is shorter (4.4 miles round trip, strenuous, 2.5–3.5 hours) and more dramatic.

Jordan Pond Path — 3.4-mile loop around Jordan Pond (easy, 1.5–2 hours). The southern path traverses smooth log walkways over boggy terrain; the northern path runs near the water. The Jordan Pond House at the trailhead serves tea and popovers (a tradition since 1895 — approximately $12 for tea and two popovers as of 2026).

Ocean Path — 4 miles one-way from Sand Beach to Otter Point (easy, flat, 2 hours one-way). Follows the rocky shoreline past Thunder Hole (a sea channel that booms at mid-tide), Monument Cove, and Otter Cliffs. The most scenic coastal walk in the park.

Precipice Trail — 1.6 miles round trip (strenuous, 2–3 hours) to Champlain Mountain summit (1,058 ft). The most dramatic iron-rung-and-ladder route in the park; nearly vertical in places. Seasonal closure mid-April through mid-August to protect peregrine falcon nesting. Check current status at the visitor center.

Beehive Loop — 1.6 miles (strenuous, 1.5–2 hours) using iron rungs and ladders on steep exposed rock faces above Sand Beach. The park’s most exciting hike under 2 miles. Closed during falcon nesting (same schedule as Precipice).

Carriage Roads — 45 miles of broken-stone carriage roads built by John D. Rockefeller Jr. between 1913 and 1940, car-free and open to cycling, hiking, and horses. Bike rentals in Bar Harbor from approximately $25–35/day. Eagle Lake Loop (6 miles, easy, 2 hours by bike) is the classic intro circuit.

Permits

Day hiking requires no permit beyond park entry and any Cadillac Summit Road reservation.

Backcountry camping: Acadia has no designated backcountry campsites — all camping must be at established campgrounds. No backcountry permit system.

Isle au Haut: The remote southern section of Acadia, reached by ferry from Stonington, ME (approximately $38 round trip as of 2026). The Duck Harbor Campground on Isle au Haut has five lean-to shelters; reservations required via recreation.gov, open April 1 for the summer season. Extremely popular — apply on April 1.

Cadillac Summit Road vehicle reservation: Required May–October, approximately $6/vehicle, via recreation.gov.

Accommodation

In-park:

No in-park lodges. All lodging is in Bar Harbor or nearby towns.

Campgrounds (two main campgrounds on Mount Desert Island):

Blackwoods Campground — 281 sites, 5 miles south of Bar Harbor. Approximately $30/night. Reservations via recreation.gov; fills weeks ahead in summer.
Seawall Campground — 202 sites, west side of the island. Approximately $22–30/night. Mix of reservable and first-come-first-served sites. Quieter location.

Bar Harbor, ME (immediately adjacent to the main park area):

Dozens of hotels, inns, and B&Bs. Peak summer rates from approximately $200–450/night for mid-range properties; budget motels approximately $120–160/night. Book at least 4–6 months ahead for July–August.
Bar Harbor Inn — On the waterfront, rooms from approximately $275/night.
Bluenose Inn — On a hilltop with ocean views, from approximately $290/night.

Southwest Harbor, ME — Quieter village on the south side of the island. Inns from approximately $150/night. 15-minute drive to Jordan Pond.

Packing and Preparation

Layers are essential: Maine coastal weather is unpredictable. Even in July, cold fog can descend with little warning. Pack a waterproof jacket regardless of the forecast.
Sunrise at Cadillac: Book the sunrise timed entry reservation well in advance. Bring warm clothing — summit temperatures are 10–15°F colder than Bar Harbor at dawn, and wind makes it feel colder. June sunrise is around 4:45am; October sunrise around 6:15am.
Tick awareness: The park has a high density of deer ticks carrying Lyme disease. Check thoroughly after any trail hiking or carriage road cycling. Long socks and permethrin-treated clothing reduce risk.
Bar Harbor parking: Effectively impossible to park on the main streets in July–August peak periods. Use the Bar Harbor Village Green shuttle stop and take the Island Explorer.
Boat tours: Bar Harbor Whale Watch Company and similar operators run whale-watching trips approximately $50–70/person; puffin watching tours approximately $40–60/person (late May through August). Book in advance.
Lobster dining: Jordan’s Restaurant and Thurston’s Lobster Pound (Southwest Harbor) offer classic Maine lobster at approximately $18–30 per pound as of 2026. Eating lobster on the dock is the standard Acadia experience.