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Cadillac Mountain sunrise reservations are a $6 per-vehicle timed slot sold on Recreation.gov. The park’s reservation page requires them for the Cadillac Summit Road from May 20 through October 25 in 2026. Outside those dates, read the live page for the current rules before you plan around it.
Walkers, cyclists and taxi riders do not need the slot. That leaves three real choices: book a sunrise slot and drive up, hike up in the dark, or skip sunrise and take a sunset slot instead.
I would book a sunrise slot and keep a sunset slot as a backup, because the one thing no reservation controls is the sky. We have done plenty of before-dawn viewpoint starts with nieces and nephews along, and the pattern holds: the booking is the easy part, and cold and cloud are what people under-pack for. This post covers only the summit and the slot. For the whole island, read our Acadia National Park itinerary.
Do you need a reservation for Cadillac Mountain sunrise?
Yes, for a vehicle on the Cadillac Summit Road while the season runs. The reservation page gives the 2026 season as Wednesday, May 20 through Sunday, October 25. Another park page, about driving the mountain, words it as mid-May to mid-October, so the two do not match to the day.
The park’s hours page lists the reservation check station from May 20 to October 25, 2026. It lists the paved park roads as open April 15 to December 1. So late fall is a gap with no slot to book, weather allowing, before the winter road closure. The 2027 season dates were not posted in early October 2026. Confirm both on the park page and the Recreation.gov listing.
The rule covers vehicles only. It says reservations are not needed for people who arrive on foot, by bike or by taxi, or for any other part of the park. Motorcycles, scooters and mopeds each need one, and vehicles over 21 feet, recreation vehicles and trailers are not allowed on the road.
If nothing is left, you have not necessarily lost the morning. Because 70 percent of slots are held for the two-day release, an empty calendar at the 90-day mark is not the last chance. Check again two days out at 10 am Eastern, and keep the hike and the sunset slot in your back pocket.
Cadillac Mountain sunrise reservation cost
A vehicle reservation costs $6, per the park’s reservation page on the date checked. It is per vehicle, not per person, so a full car pays what a solo driver pays.
The entrance pass is separate. The park’s fee page listed $35.00 for a vehicle (valid 7 days), $30.00 for a motorcycle and $20.00 per person, and said a pass is required year-round.
Slots are sold online in advance on Recreation.gov, not at the park. Thirty percent are released 90 days ahead and 70 percent two days ahead, both at 10 am Eastern. Here is the order I would work in:
- Open the Recreation.gov listing for Cadillac Summit Road and choose the ticket named “Cadillac Summit Road – Sunrise”.
- Open the “Seasons & Booking” tab to see which dates have been released.
- Log in before 10 am Eastern on release day, so you are not resetting a password at 10:00.
- Pick the date and a 90-minute entry window, then check out.
- Save or print the QR code from the confirmation email, because it is scanned to verify the reservation.
One sunrise reservation is allowed per vehicle every seven days. Changes to another time or date are free before the reservation time, and a reservation does not permit re-entry.
Cadillac Mountain sunrise time
Sunrise reservations have a 90-minute entry window, and the window moves with the calendar. The park’s 2026 table is below, so confirm the windows for your own season.
| Dates | Window opens | Window closes |
|---|---|---|
| May 20 – July | 4 am | 5:30 am |
| August | 4:30 am | 6 am |
| September | 5 am | 6:30 am |
| October 1–15 | 5:30 am | 7 am |
| October 16–25 | 6 am | 7:30 am |
The window is when you may drive in, not when the sun rises. For the sun itself, use the NOAA solar calculator, drop the pin on Bar Harbor and enter your date. NOAA warns that observed values can differ a little from the calculation, so aim to be parked well before it.
The park words its famous claim narrowly. From October 7 to March 6, it says, Cadillac Mountain is the first place in the country you can see the sun rise. Outside those dates the park does not make that claim, and I would not either.
Can you hike Cadillac Mountain without a reservation?
Yes. No vehicle reservation is needed on foot, though the park entrance pass still applies. The park’s Cadillac Mountain page puts the summit at 1,530 feet and the road at a windy, paved 3.5 miles.
| Way up | Effort | Cost | What to know |
|---|---|---|---|
| Drive the Summit Road | Easiest; 3.5 paved miles, short paved summit loop | $6 per vehicle plus the entrance pass | 90-minute sunrise entry window; no re-entry |
| Cadillac North Ridge Trail | 4.4 miles round trip | Entrance pass only | Exposed granite is slippery when wet |
| Cadillac South Ridge Trail | 7.1 miles round trip | Entrance pass only | The longest of the three park-listed routes |
| Gorge Path | 2.5 miles round trip; add about 30 minutes to reach a summit | Entrance pass only | Steep granite stairs and some scrambling; not advisable when wet |
Hiking up in the dark is the free option, but I would only consider the North Ridge. The park lists the Gorge and North Ridge loop at 5.2 miles with 1,086 feet of climbing, and 2 to 4 hours in daylight. Budget longer with a headlamp, which means starting well before the road window would open.
Treat the Gorge Path as a daylight trail. Its page says most surfaces are very unlevel and the path is not advisable when wet.
Cadillac Mountain sunrise tips
A reservation guarantees a slot, not a view. The park warns that weather changes rapidly along the coast and that conditions can differ dramatically between the Park Loop Road and the summit: wind, rain, fog and cold, even in summer. The park pages do not say what happens to a reservation if weather closes the road, so confirm refund rules on Recreation.gov before you book.
The road is a windy 3.5 miles in the dark, with other cars arriving in the same window. Drive it slower than you think you need to, and give yourself time at the top before the sky starts to lighten.
Check the National Weather Service forecast for Bar Harbor the night before and again when the alarm goes. Dress for colder and windier than the town, because the summit is exposed granite. This is the short kit I would pack:
- A headlamp, not a handheld light, so both hands are free on the rock.
- A warm layer, a windproof shell, a hat and gloves.
- Closed-toe shoes with real traction.
- A thermos, and the QR code saved offline on your phone.
Cadillac Mountain sunset
Sunset is the backup, and I would book it as one. Daytime reservations carry a 30-minute entry window and a limit of one per day, per the park’s page. Compare the sunset time on the NOAA calculator with the daytime windows shown for your date.
The summit lot gets crowded. Per the park, it fills with autos and tour buses most of the summer, and the road closes to vehicles at 9 pm. Sunrise and daytime limits are separate lines on the page, so confirm at checkout that you can hold both.
What to do after Cadillac Mountain sunrise
Walk the summit loop first. The park calls it short and paved, with some portions wide enough for a single wheelchair and others very steep or with steps. Then drive down, since reservations do not permit re-entry.
The rest of the day belongs to the Loop Road and the coast. In 2026 the park’s alerts page listed storm damage at Ocean Path, the Sand Beach staircase and the Otter Cove causeway. Check it before you go.
Building a longer park trip? Our national park road trip cost guide covers the budget side.
Is Cadillac Mountain worth it?
Is Cadillac Mountain sunrise worth it?
I would call it worth one early alarm, and not worth planning a whole trip around. The park describes 360 degree views from the highest point on the U.S. eastern seaboard, and a clear morning delivers that. A foggy one does not, which is why the sunset backup matters.
Can you drive up Cadillac Mountain without a reservation?
Not while the season requirement applies, except on foot, by bike or by taxi. The park’s hours page lists the reservation check station from May 20 to October 25, 2026. It lists the paved park roads as open April 15 to December 1, so confirm the road is open before you drive up.
Does the Island Explorer go to Cadillac Mountain?
No. The park says there is no Island Explorer bus service on the Cadillac Summit Road. Its North Ridge hike page does name the #4 and #5 buses to that trailhead, but also lists service as mid-June to mid-October, and the Island Explorer lists its 2026 season as June 23 through October 12.
How early should you get to Cadillac Mountain for sunrise?
Enter early in your 90-minute window, with time to park and walk before the sky lightens. Work from the NOAA sunrise time for your date, not from the window alone.
Prices are approximate, current as of publication, and change frequently — confirm the latest price with the retailer before buying.
Published October 21, 2026.
Photo credits: (1) featured, Sunrise light over the granite summit of… — NPS / Kent Miller, U.S. Government work, public domain, via National Park Service; (2) Cadillac Summit Road winding across the… — Thomson M, CC BY 3.0, via Wikimedia Commons; (3) Granite steps and boulders on the Cadillac… — Photo by John Clark, Friends of Acadia, NPS, U.S. Government work, public domain, via National Park Service; (4) Summer fog filling the valley below… — U.S. Department of Transportation, U.S. Government work, public domain, via Wikimedia Commons; (5) Rocky ledges along the Cadillac North Ridge… — Photo by John Clark, Friends of Acadia, NPS, U.S. Government work, public domain, via National Park Service.