A Maine-Anchored New England Road Trip
A New England road trip built around national park sites sounds tidy on a map. In Maine it is anything but. The five places below are spread across some of the largest, emptiest country in the Northeast, and only one of them, Acadia, is a true National Park. Two are National Park Service units of a different kind, one is an NPS-affiliated culture program scattered across the far north, and one is technically in Canada.
So I am going to be straight with you. This is a Down East and northern Maine trip with Acadia as the anchor. You will not knock all five out in a weekend, and you should not try. I have ordered them by geography along a sensible route, not by how good they are, because a road trip lives or dies on the driving math.
Here is what this guide actually delivers: the real designations, honest drive legs between stops, the 2026 reservation and border details you need to know before you go, and a frank read on which stops are worth the miles and which are better skipped unless you have the time.
The Route At A Glance
Drive legs below are one-way and measured from the previous stop. Bar Harbor, at the edge of Acadia, makes the most logical base to start from.
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| Stop | Type / Designation | Drive From Previous Stop | Worth It? |
|---|---|---|---|
| 1. Acadia | National Park | Anchor (about 160 mi / 3 hr from Portland) | Yes. The reason to make the trip. |
| 2. Katahdin Woods & Waters | National Monument | About 120 mi / 2.5 hr from Acadia | Yes, if you want true wilderness and have a sturdy vehicle. |
| 3. Maine Acadian Culture Center | NPS-affiliated heritage program (St. John Valley) | About 140 mi / 2.5 hr north of Katahdin | Only if Acadian history is your thing. It is a long detour. |
| 4. Roosevelt Campobello International Park | US/Canada International Park (NOT an NPS unit) | Down East near Lubec; passport required | Yes, if you carry a passport and like FDR history. |
| 5. Saint Croix Island | International Historic Site (NPS) | About 40 mi from Campobello area, near Calais | Brief. A mainland overlook, not an island you can land on. |
One honest note on routing. Stop 3, the St. John Valley, sits in Maine’s far north and pulls you a long way off the coast. Many travelers run Acadia and Katahdin together, then come back south and do the Down East border sites (Campobello and Saint Croix) as a separate leg. We have kept all five in a logical north-then-east order, but feel free to cut the St. John Valley if your days are tight.
1. Acadia National Park
Drive from Portland: about 160 miles, roughly 3 hours via I-95 N and Route 1/Route 3 to Mount Desert Island. This is your anchor. Base in or near Bar Harbor.
Acadia is the only National Park in the northeastern United States, and it earns the title. Granite headlands drop straight into the Atlantic, rounded mountains rise off the sea, and the carriage roads built by John D. Rockefeller Jr. give you miles of car-free riding and walking. Maine’s coast is unlike anywhere else in the country, and this is the best seat in the house.
There are more than 150 miles of trails, plus biking, sea kayaking, and some of the darkest skies on the Eastern Seaboard. Fall brings the maples and aspens into full color, which is the prettiest time to come and also the busiest.
The 2026 Cadillac Summit Reservation You Need To Know About
Here is the one logistical thing that trips people up. To drive the Cadillac Summit Road, the paved route to the top of Cadillac Mountain, you need a timed vehicle reservation. For 2026 it is required from May 20 through October 25. You book it on Recreation.gov for $6 per vehicle, and that is on top of your park entrance pass.
Reservations come in two windows. About 30% of slots open 90 days ahead at 10 a.m. Eastern, and the remaining 70% open two days ahead at the same time. Sunrise slots are the hardest to get and are limited to one per vehicle every seven days. If you do not snag a reservation, you can still hike or bike Cadillac, or simply enjoy the rest of the park, which needs no summit reservation.
Crowds, Stars, And Water
Summer and peak foliage bring the biggest crowds, concentrated at Cadillac Mountain, Jordan Pond, and the Park Loop Road. The interior trails thin out fast, so if you want quiet, walk a few minutes past the pull-offs. Winter is empty and beautiful if you are equipped for it.
For stargazing, head to Jordan Pond, Ocean Path, Sand Beach, or Seawall. For water, Sand Beach and Echo Lake Beach are the swimming spots, and you can rent kayaks, canoes, and sailboats in the surrounding towns or join a whale-watching or nature cruise out of the harbor.
Curious which parks have shown up on the big screen? See our roundup of classic movies filmed in the national parks.
2. Katahdin Woods And Waters National Monument
Drive from Acadia: about 120 miles, roughly 2.5 hours, heading inland toward the Millinocket area and the monument’s gates. From Portland it is about 210 miles.
In 2016 President Barack Obama designated about 87,500 acres east of Baxter State Park as Katahdin Woods and Waters National Monument. This is real wilderness: rivers, undeveloped forest, abundant wildlife, and some of the darkest night skies in the East. A good first move is the Katahdin Loop Road, a 17-mile drive with overlooks across the southern half of the monument.
The Honest Caveat: This Place Is Remote
Read this part before you go. Every road inside the monument is unpaved. The interior roads are old logging roads that are rocky, uneven, and often muddy, so a high-clearance vehicle is recommended. There is no cell service and no potable water inside the boundary. Fill your tank, pack water, and download maps before you lose signal.
Access is seasonal too. The roads are typically open to vehicles from late May to mid-November, and exact dates shift with conditions. From mid-November to late May the north entrance and the Katahdin Loop Road close to wheeled vehicles, and some gates on the access roads are controlled by a neighboring timber company. Always check current road status before you commit to the drive.
If you do make it in, the six-mile Orin Falls Trail is a favorite. It follows old logging roads along Wassataquoik Stream, with good odds of wildflowers and wildlife along the way. Trails here range from easy to intermediate, and you can also canoe, kayak, fish, and in winter, cross-country ski and snowshoe.
3. Maine Acadian Culture Center
Drive from Katahdin: about 140 miles, roughly 2.5 hours north into the St. John Valley around Van Buren and Fort Kent. From Portland it is a serious haul, around 330 miles and five hours, so be honest with yourself about whether this fits your trip.
This is not a single building so much as an NPS-affiliated heritage program that ties together a string of sites across the upper St. John Valley. The Acadians were descendants of French settlers in 17th and 18th century North America, and after the British expulsion many resettled along this stretch of the Maine and New Brunswick border. The culture is still very much alive here.
Among the places worth your time are the Acadian Landing and Tante Blanche Museum, the Acadian Village in Van Buren, the Fort Kent Blockhouse, and the Allagash Wilderness Waterway. Because the sites are spread out, it pays to pick the two or three that interest you most and plan a route before you head north.
The honest take: this is a rewarding stop for anyone interested in French-American history, but it is far off the coastal route and worth the detour only if that history genuinely appeals to you. If it does not, skip it and spend the time on the coast.
4. Roosevelt Campobello International Park
Drive Down East: from Portland it is roughly 245 miles and over four hours to the Lubec crossing. Heads up: this park is on Campobello Island in New Brunswick, Canada, so you cross an international border to reach it.
One important distinction. This is not a National Park Service unit. It is an International Park jointly run by the United States and Canada, the only one of its kind, set up as a memorial to Franklin Delano Roosevelt and a symbol of cooperation between the two countries. FDR summered on Campobello as a boy and kept coming back as an adult, even after polio limited his visits.
The 2026 Border And Season Details
Carry a passport. Because the park is in Canada, every U.S. visitor needs a valid passport or equivalent travel document to cross the border, no exceptions. The island runs on Atlantic Time, an hour ahead of the Maine mainland.
For 2026 the park opens for the season on May 23 and runs through mid-October. Daily hours for the historic buildings and programs are 10 a.m. to 6 p.m. Atlantic, which is 9 a.m. to 5 p.m. Eastern. Admission is free, though donations help keep the international partnership running.
Start at the visitor center, where the exhibits and the short film “Beloved Island” set up the story. Then tour the 34-room Roosevelt Cottage, where guides are stationed in the rooms to answer questions. You can see FDR’s office and bedroom, Eleanor’s writing room, and the family living spaces, all kept much as the Roosevelts left them.
Beyond the cottage there are about 2,800 acres of park, with roughly 8 miles of walking trails and 8 miles of driving roads through bogs, forest, and shoreline. It is an easy place to spend a half day once you have made the trip out.
5. Saint Croix Island International Historic Site
Drive from the Campobello area: about 40 miles up to the site near Calais, on the U.S. side of the Saint Croix River. From Portland it is roughly 230 miles and just under four hours.
This NPS site commemorates the 1604 French attempt to settle the territory they called l’Acadie, one of the earliest European settlements in North America. Among those who wintered here in 1604 to 1605 was Samuel de Champlain, later the founder of Quebec. Congress authorized the site in 1949 and designated it an International Historic Site in 1984, a status it shares with Parks Canada across the river.
Set Your Expectations: This Is A Mainland Overlook
Be clear on what this stop is. You do not actually land on Saint Croix Island. The island is fragile and closed to the public, and there are no ranger boat tours. What you visit is the mainland unit: a small visitor center, a few picnic tables, and a short gravel interpretive trail of about a tenth of a mile down to the river, where you look across at the island.
The interpretive trail tells the hard story of that first winter, when scurvy killed nearly half the settlers, drawn partly from Champlain’s own account. It is a short, quiet, worthwhile stop, but plan on under an hour, and bring a picnic if the weather cooperates.
Nearby St. Stephen and St. Andrews, just across the border in New Brunswick, add museums, restaurants, and lodging if you want to round out this corner of the trip. (Same rule applies: passport required to cross.)
Planning This Road Trip
Best Season
Late September into the first half of October is the sweet spot. The fall color peaks, Acadia is glorious, and the border parks are still open before their mid-October close. Summer works too but brings the heaviest crowds at Acadia. Outside roughly late May through mid-October, Katahdin Woods and Waters roads close and Campobello shuts for the season, so a winter version of this trip is not really on the table.
Reservations And Border Crossings
Two things to handle in advance. First, if you want to drive up Cadillac Mountain, book a timed Cadillac Summit Road reservation on Recreation.gov ($6 per vehicle, required May 20 to October 25, 2026). Second, both Roosevelt Campobello and any side trip to St. Stephen or St. Andrews require a passport, since they are in Canada. Pack it even if you only think you might cross.
The Distances Are Real
This is a big-mileage trip across a big state. Acadia and the Down East border sites pair naturally; the St. John Valley is a long northern detour that you can fold in or cut. Katahdin Woods and Waters demands a sturdier vehicle and self-sufficiency: full gas tank, water, downloaded maps, and no expectation of cell service. Plan your fuel stops, and do not try to chain all five together in a single short weekend.
Where To Base
Bar Harbor is the natural base for Acadia and the launch point for the whole loop. For the northern and Down East legs, Millinocket serves Katahdin, and the Calais and Lubec area covers both Saint Croix and Campobello in one stretch.
About The People Behind More Than Just Parks
You should know that this guide does not come out of thin air. More Than Just Parks is a family operation. My sons Will and Jim have spent their adult lives exploring and filming America’s national parks and public lands destinations, working with the National Park Service, the Department of the Interior, and the U.S. Forest Service for years. I taught American history for 25 years, and I write our history and travel guides.
My sons Jim Pattiz and Will Pattiz, collectively known as the Pattiz Brothers, are the filmmakers behind More Than Just Parks, and our whole family loves the national parks. To learn more, read about the two men who built the early park system, the real-life duo behind the National Park Service.
