New England Coastal — 7-Day RV Trip From Boston to Acadia
Typical rate: $3,000-$3,800 all-in for two people, 7 days
Take this route with you Tap to open the full route in Google Maps — save it or start turn-by-turn navigation from your phone. Open in Google Maps → The reward at the end of this drive is a mountaintop you have to reserve a spot to reach. Cadillac Mountain is the first place the sunrise touches the United States for much of the year, and Acadia now rations the drive up by timed ticket — which tells you everything about how good the New England coast has gotten at drawing crowds. The 7-day run from Boston to Acadia threads the best of it: Cape Cod’s dune beaches, New Hampshire’s short salted coastline, Portland’s lighthouses and oyster bars, and the granite-and-spruce finale of Mount Desert Island. Here’s the route, with the two Acadia reservations you have to nail before anything else.
What does the trip look like at a glance?
Seven days, about 600 miles round trip, four coastal states, best June through September (or mid-October for foliage).
- Launch: Boston, MA (BOS airport)
- Distance: ~600 miles round trip
- Recommended class: Class C 24-28 ft
- All-in budget: $3,000-$3,800 for two people
- Best months: June–September; mid-October for peak Maine foliage
Book these two Acadia reservations first
The campground and the mountain are separate bookings, and both sell out. Get them before you plan a single mile.
- Blackwoods Campground: open May 1–October 19, 2026; roughly 90% of sites release six months ahead (first of the month, 10 a.m. ET), the last 10% at 14 days.
- Cadillac Summit Road vehicle reservation: required May 20–October 25, 2026; $6 on Recreation.gov, on top of your park pass. 30% release 90 days out, 70% at 10 a.m. ET two days before — as a Sunrise (90-minute) or Daytime (30-minute) slot.
Day-by-day route
Days 1-2: Boston → Cape Cod
Pick up near Boston and drive out to the Cape (Massachusetts). Base two nights at Nickerson State Park in Brewster: Cape Cod National Seashore, the dune-backed beaches at Marconi and Coast Guard, and the sunset off Race Point, the best on the Cape. Camp: Nickerson (~$40) or a private park.
Day 3: Cape Cod → Portsmouth, NH
Drive north to Portsmouth, New Hampshire’s handsome little colonial port — Strawbery Banke, a Market Square dinner, and the state’s brief but pretty stretch of coast. Camp: a Seacoast-area RV park.
Day 4: Portsmouth → Portland, ME
Cross into Maine with a stop at Nubble Light in York, one of the most photographed lighthouses in America, then Portland Head Light at Fort Williams. Cap it in Portland’s Old Port — this is one of the country’s best small food cities, so book an oyster bar. Camp: a Scarborough-area park (~$55-$75).
Day 5: Portland → Acadia
The prettiest driving day: US-1 up the mid-coast past Camden Hills and the working harbors, into Bar Harbor and Acadia. Set up at Blackwoods, then use your reservation for Cadillac Summit at sunset. Camp: Blackwoods (~$30).
Day 6: Acadia
The Park Loop Road — Thunder Hole, Sand Beach, Otter Cliff — then popovers at the Jordan Pond House and a Bar Harbor evening (a whale-watch boat if the weather’s kind). Camp: Blackwoods.
Day 7: Acadia → Boston
A Cadillac sunrise if you scored the slot, then the long haul back to Boston — dump tanks, refuel, return the rig.
What does it cost all-in?
About $3,000-$3,800 for two — and the Northeast tax shows up in three places: rental, fuel, and lobster. Our July 2026 pull of 3,398 live listings put the national median at $150/night; a Boston-area Class C runs above that, and regional gas sits over the national average. Treat these as a research-date snapshot.
| Line item | Amount |
|---|---|
| Class C rental: $195/night × 7 | $1,365 |
| Booking fees + insurance + cleaning | $400–$550 |
| Fuel (600 mi @ 8 mpg @ $3.95/gal, NE) | $297 |
| NPS America the Beautiful pass | $80 |
| Campgrounds (state park, NPS, private) | $300–$450 |
| Cadillac Summit vehicle reservation | $6 |
| Food, lobster, dining (2 people) | $500–$800 |
| All-in, 7 days | $2,948–$3,548 |
Lobster pounds are the wildcard — restaurant tails run $20-$45, retail pounds far less. Our RV rental cost guide covers the method.
Which RV class fits the coast?
A Class C, 24-28 ft — big enough for a week, small enough for Cape Cod’s streets and Acadia’s loops.
| Class | New England coastal fit |
|---|---|
| Class B under 22 ft | Fits everything; easy parking in Provincetown and Bar Harbor |
| Class C 24-28 ft | The sweet spot — Acadia campgrounds and manageable on the Cape |
| Class C 30-35 ft | Acadia caps around 35 ft; tight in Cape towns |
| Class A 30-35 ft | Awkward on both the Cape and Mount Desert Island |
What goes wrong out here — and how do you handle it?
The Northeast’s issues are crowds, reservations, and weather.
- No Blackwoods site: try Seawall (confirm 2026 road status), Schoodic Woods, or a Bar Harbor private park.
- No Cadillac slot: check the two-days-out release at 10 a.m. ET — 70% drops then.
- Fall storms: September-October can bring coastal weather; carry travel insurance for a foliage trip.
- Boston traffic: time the Day 7 return for early afternoon.
- Salt spray: confirm the rental’s cleanup fee up front.
Bottom line
The 7-day Boston-to-Acadia coastal loop is the Northeast’s flagship RV trip — dune beaches, lighthouses, oysters, and a summit you reserve your way onto. Book Blackwoods six months out and the Cadillac slot the day it drops, run a Class C 24-28 ft, and decide between summer warmth and October color. See our Massachusetts and Maine state guides and the Acadia NP guide.
Frequently Asked Questions
Do you need a reservation to drive up Cadillac Mountain in Acadia?
Yes, from May 20 to October 25, 2026. A $6 vehicle reservation for the Cadillac Summit Road is required on top of your park entrance pass, sold only on Recreation.gov. Reservations come in two types — a Sunrise slot with a 90-minute entry window, or a Daytime slot with a 30-minute window — and release in two waves: 30% open 90 days ahead, the other 70% at 10 a.m. ET two days before. It's separate from your campground booking.
How do you book Acadia's campgrounds?
Through Recreation.gov, well ahead. Blackwoods Campground runs May 1 through October 19 in 2026, with about 90% of sites released six months in advance (on the first of the month at 10 a.m. ET) and the last 10% opening 14 days out. Seawall on the island's quiet west side is the usual backup — but Seawall Road reconstruction is slated to begin in 2026, so confirm its status before you count on it. Schoodic Woods on the mainland peninsula is the sleeper alternative.
What does a New England coastal RV trip cost?
About $3,000-$3,800 all-in for two over seven days: roughly $1,365 for a Class C at $195/night, $400-$550 in fees and insurance, ~$300 in Northeast fuel, an $80 park pass, $300-$450 in campgrounds, the $6 Cadillac reservation, and $500-$800 for food — where the lobster does real damage. Northeast rentals and gas both run above the national average.
What size RV works for Cape Cod and Acadia?
A Class C, 24-28 feet. It fits Blackwoods and Seawall and handles the narrow, crowded Cape Cod town streets and Acadia's Park Loop Road. Class A motorhomes over 30 feet are genuinely awkward on both the Cape and Mount Desert Island; a sub-22-foot Class B adds parking flexibility in Provincetown and Bar Harbor if you don't need the space.
When should you go — summer or fall foliage?
Summer (June-September) for the warmest water, longest days, and every business open. Mid-October for the payoff most people come north for: the Maine coast's foliage peaks then, crowds thin, and rates soften — the tradeoff is cooler weather and some seasonal restaurants and campgrounds shutting down. The Cadillac reservation runs through October 25, so a foliage trip still needs one.
How far is the drive from Boston to Acadia?
About 280 miles and five hours one way if you ran it straight — but this trip is the opposite of straight, stringing Cape Cod, Portsmouth, and Portland across three days before Acadia. The return from Bar Harbor to Boston is the one long haul, roughly 5.5 hours; plan it for early afternoon to slide under Boston's commuter traffic.