Things to Do in Acadia National Park

The things to do in Acadia National Park that we could check are the Park Loop Road, Sand Beach, Thunder Hole, Jordan Pond, the carriage roads and Cadillac Mountain. To drive up Cadillac you need a $6 reservation on Recreation.gov, and it ends on 25 October 2026. We read the official pages on 14 October 2026.

Cadillac Summit Road reservation

Booking: Vehicle reservations are required to drive Cadillac Summit Road from 20 May to 25 October 2026. They cost $6 a vehicle, are sold only online at Recreation.gov, and cannot be bought at the park. A park entrance pass is also required (NPS, Cadillac Summit Road Vehicle Reservations page, last updated 25 Nov 2025, read 14 Oct 2026)

Note: Release: 30% of slots open at 10 a.m. Eastern time 90 days ahead, and 70% open at 10 a.m. Eastern time two days ahead. Limits: one sunrise reservation per vehicle every seven days, and one daytime reservation per vehicle each day (same page)

Hours: Entry windows from 1 to 15 October: sunrise 5:30 to 7:00 a.m., daytime 7:30 a.m. to 6 p.m. From 16 to 25 October: sunrise 6:00 to 7:30 a.m., daytime 8:00 a.m. to 5:30 p.m. The sunrise window is 90 minutes and the daytime window is 30 minutes. The road closes at 9 p.m. Re-entry is not allowed (same page)

Note: You do not need a reservation for other parts of the park or to arrive on foot, by bike or by taxi. Vehicles over 21 feet long (bike racks and hitches count), RVs and trailers are banned from the road even with a reservation. The page does not mention refunds. It says you can change a reservation at no cost to another date or time before the original one (same page)

The mountain itself is open without a reservation if you hike. NPS says the summit is 1,530 feet and the paved summit road is about 3.5 miles. The two trails to the top car park are the North Ridge Trail at 4.4 miles round trip and the South Ridge Trail at 7.1 miles round trip (NPS, Cadillac Mountain page, last updated 23 Oct 2024, read 14 Oct 2026). The same page says that from 7 October to 6 March it is the first place in the country to see the sunrise.

The sights

Park Loop Road

Note: NPS calls it "the go-to scenic drive around the east side of Mount Desert Island." The road is 27 miles (43 km) long. In winter only the stretch from the Entrance Station to Otter Cliff Road usually stays open to vehicles (NPS, Park Loop Road page, last updated 17 Aug 2026, read 14 Oct 2026)

Hours: NPS's Operating Hours and Seasons page lists the Park Loop Road and other paved roads as open 15 April to 1 December. The row shows no year, and early snow can close roads sooner (NPS, Operating Hours and Seasons page, last updated 27 Aug 2026, read 14 Oct 2026)

Sand Beach

Note: "The largest sandy beach in Acadia," with cliffs around it. A staircase of 37 steps leads down. The main lot has five accessible spaces, and the beach itself is not wheelchair accessible. The water is typically 50 to 60 F (10 to 15 C). The page gives no swimming dates (NPS, Sand Beach page, last updated 11 Aug 2026, read 14 Oct 2026)

Note: NPS says the Sand Beach lot is "routinely full by 9 am." Arrive earlier or use the shuttle (NPS, Avoiding Crowds at Peak Season page, last updated 21 Aug 2026, read 14 Oct 2026)

Thunder Hole

NPS says: "We recommend coming one to two hours before high tide for the best chance of hearing this roar." Spray has been seen higher than 40 feet. The page warns that "even in calm weather, rogue waves can suddenly wash over the surrounding granite ledges," and parts of the walkway close during storms (NPS, Thunder Hole page, last updated 14 Aug 2026, read 14 Oct 2026).

Jordan Pond and the carriage roads

Note: Jordan Pond: NPS names "famous tea and popovers at the Jordan Pond House," first served in 1893. Park in the north lower lot and not on the Park Loop Road. The page gives no path length (NPS, Jordan Pond page, last updated 23 Oct 2024, read 14 Oct 2026). NPS's hours page lists the Jordan Pond House restaurant as open 16 May to 26 October and the store 23 April to 2 November, with no year shown (read 14 Oct 2026)

Note: Carriage roads: NPS lists 45 miles of historic carriage roads for bicycling (NPS, Things To Do page, last updated 13 Jul 2026, read 14 Oct 2026)

Island Explorer, the free shuttle

Getting there: The Island Explorer is fare free. NPS says it reaches the Park Loop Road, carriage roads, trails and most crowded areas, but not the Cadillac summit. You can park and ride from the Hulls Cove Visitor Center or the Acadia Gateway Center in Trenton, where buses leave every 30 minutes. NPS says no eBikes or motorized vehicles are allowed on the buses (NPS, Avoiding Crowds at Peak Season page, last updated 21 Aug 2026, read 14 Oct 2026)

Note: 2026 dates: the Island Explorer site says the Gateway Center, Loop Road and Schoodic routes started 20 May and gives no end date. It says "Other Island Explorer buses operate from June 23 through October 12, 2026," with fall schedules from 17 August (exploreacadia.com, read 14 Oct 2026). NPS says service is offered 7 days a week "through October 13" with reduced fall service from 18 August (NPS, Island Explorer page, last updated 9 Apr 2026, no year in the sentence). The two sources differ by one day, and neither gives an end date for the three spring routes. NPS lists the Acadia Gateway Center as open until 14 October (NPS hours page). Service has probably ended for 2026. Not confirmed

2026 entrance fee and pass

Price: Private vehicle $35, motorcycle $30, on foot or bike $20 a person, each good for 7 days. Ages 15 and under are free. Acadia annual pass $70, good for 12 months (NPS, Acadia Fees and Passes page, last updated 1 Jan 2026, read 14 Oct 2026)

Price: Non-US residents aged 16 and over pay an extra $100 a person unless they are admitted with an annual pass or an America the Beautiful pass. Acadia is on NPS's list of the 11 parks that charge it (NPS fees page, last updated 1 Jan 2026, read 14 Oct 2026)

Price: America the Beautiful annual pass: $80 for US residents, $250 for non-US residents. Free entrance days in 2026 for US citizens and residents include 27 October and 11 November. The Fees page says timed-entry or reservation fees may still apply on those days (NPS nonresident fees page, last updated 15 Jul 2026, and Acadia fees page, read 14 Oct 2026)

Note: The park fees page says that from 15 April, park sales outlets take only mobile, credit or debit payments

By our arithmetic, a non-US resident adult in one car pays $35 plus $100, or $135, at the gate. The $250 non-resident pass costs more than that for this one park. It can pay off if you visit other parks on the list.

Best time to visit

Note: NPS says crowds are heaviest from June to September, most traffic is at midday, and it suggests arriving before 8 a.m. or after 5 p.m. Winter, spring and late fall are the calmest (NPS, Avoiding Crowds at Peak Season page, last updated 21 Aug 2026, read 14 Oct 2026)

Note: NPS weather page ranges: summer daytime 45 to 90 F, fall 30 to 70 F, winter 14 to 35 F, spring 30 to 70 F and foggy. Ocean 50 to 60 F. The page was last updated 7 Oct 2021, so treat the ranges as rough (NPS, Weather page, read 14 Oct 2026)

Note: Fall color: "The peak generally comes in mid-October" (the same 2021 NPS weather page)

Note: The Maine foliage report for 14 October 2026 put Zone 2, Downeast Maine including Bar Harbor, at peak color with moderate leaf drop. It said this may be the last report of the 2026 season (Maine Department of Agriculture, Conservation and Forestry, mainefoliage.com report page, read 15 Oct 2026)

Our view: late May and June are quieter than July and August, and weekdays are quieter than weekends. September gives smaller crowds and cooler water for hiking. This is our advice, not an official ranking. Many lodgings are seasonal, so check that your dates are open.

Where to fly into

Getting there: Bangor International Airport: "about one hour from the park." Hancock County-Bar Harbor Airport: "Direct flights from Boston's Logan Airport land at the Hancock County Airport, 10 miles from Acadia National Park." Car rentals are at both (NPS, Directions page, read 14 Oct 2026)

NPS does not mention Portland. We found no official distance from Portland, so we give none. NPS driving directions from Boston go by I-95 north to Augusta and Route 3 east through Ellsworth to Mount Desert Island, with an alternate through Bangor and Route 1A. It gives no mileage (NPS, Directions page, last updated 10 Sep 2026, read 14 Oct 2026).

Where to stay

We read no hotel's rate or room list, so we give no prices. The areas below come from two local listings we read on 15 October 2026: the lodging pages of AcadiaMagic.com, an independent guide site, and the Where to Stay page of the Bar Harbor Chamber of Commerce (visitbarharbor.com).

Many places are seasonal. AcadiaMagic.com lists the Atlantean Inn in Bar Harbor as open 12 May to 3 November and the Central House as open mid-May to mid-October, while the Acacia House Inn says it is open year-round (AcadiaMagic.com lodging and inns pages, read 15 Oct 2026). The businesses write their own entries, and the pages do not say when they were last updated, so check with the hotel. NPS lists its 2026 campground seasons as Blackwoods 1 May to 19 October, and Seawall and Schoodic Woods 20 May to 12 October (NPS hours page, read 14 Oct 2026). We did not check sites or prices.

What we checked and what can change

Read on 14 October 2026: NPS Acadia pages for Cadillac Summit Road vehicle reservations, Cadillac Mountain, fees and passes, Avoiding Crowds at Peak Season, Island Explorer, Operating Hours and Seasons, directions, weather, Sand Beach, Thunder Hole, Jordan Pond, Park Loop Road and Things To Do; NPS's nonresident fee page; exploreacadia.com. Read on 15 October 2026: the Maine foliage report for 14 October 2026 (mainefoliage.com), the AcadiaMagic.com lodging, hotels and motels, and inns pages, and the Bar Harbor Chamber of Commerce Where to Stay page.

Not confirmed: whether the Island Explorer is still running, a Portland or Boston to Acadia distance and drive time, the year of the road and Jordan Pond House dates on the NPS hours page, Sand Beach swimming dates, and any hotel rate. Reservation rules, fees and shuttle dates change, so read the NPS pages the week you go. We did not visit Acadia for this page.