National parks near Union, Maine
Union sits inside the Rockland area and reaches the same parks. See national parks near Rockland for the full write-up.
Acadia National Park is the closest national park to Union, Maine — 53.5 mi (86.1 km) in a straight line, which works out to roughly 1 hr 43 min behind the wheel.
Acadia makes a full day trip — leave early. Kejimkujik and Fundy are better with a night booked nearby.
Nothing near Union gates the entrance itself, but Acadia National Park puts a road, hike, or backcountry trip behind a permit or timed ticket.
Union has a population of about 2,297.
National parks near Union
| Park | Straight-line distance | Estimated drive | Realistic trip |
|---|---|---|---|
| Acadia National Park | 53.5 mi (86.1 km) | 1 hr 43 min | Doable as a day trip |
| Kejimkujik National Park | 201 mi (323 km) | 5 hr 12 min | Best as a weekend |
| Fundy National Park | 232 mi (374 km) | 5 hr 57 min | Best as a weekend |
| La Mauricie National Park | 253 mi (407 km) | 6 hr 26 min | Worth a longer road trip |
| Kouchibouguac National Park | 277 mi (445 km) | 7 hr | Worth a longer road trip |
| Pituamkek National Park | 314 mi (505 km) | 7 hr 52 min | Worth a longer road trip |
| Thousand Islands National Park | 330 mi (532 km) | 8 hr 16 min | Worth a longer road trip |
| Prince Edward Island National Park | 337 mi (543 km) | 8 hr 26 min | Worth a longer road trip |
| Forillon National Park | 399 mi (643 km) | 9 hr 54 min | Worth a longer road trip |
| Cape Breton Highlands National Park | 451 mi (726 km) | 11 hr 8 min | Worth a longer road trip |
What to book before you leave Union
| Park | What needs booking | Covers | How |
|---|---|---|---|
| Acadia | Cadillac Summit Road Vehicle Reservations | One road or area | Timed reservation |
Camping near Union
Within reach of Union, 4 campgrounds across 1 park appear on Recreation.gov: 4 at Acadia.
Recreation.gov releases most national park campsites six months before the arrival date, at 10:00 a.m. Eastern time. Windows are set per campground, so confirm yours on the Seasons and Fees tab on that campground page.
Once a date is gone, cancellations are the real supply, and they get taken within minutes of appearing.
When to make this trip
Acadia National Park is generally best May through October, with April and early November as the quieter shoulder either side.
Winter brings cold, shorter days, and reduced services, though lower-elevation trails often stay walkable.
Peak summer weekends and autumn colour weekends fill parking lots early — arrive before mid-morning.
Seeing more than one
Several parks near Union are close enough to each other to combine on one trip, so the drive from home only has to happen once.
| Pair | Apart | Estimated drive |
|---|---|---|
| Kejimkujik → Fundy | 84 mi (135 km) | 2 hr 26 min |
| Fundy → Kouchibouguac | 86.4 mi (139 km) | 2 hr 30 min |
| Acadia → Kejimkujik | 148 mi (238 km) | 3 hr 57 min |
| Kejimkujik → Kouchibouguac | 170 mi (273 km) | 4 hr 28 min |
Planning a trip from Union
Distances here are straight-line and the drive estimate adds a road factor on top, but mountain passes and seasonal closures can change it a lot — a route that looks like three hours in June can be shut entirely in February. Confirm road status with the park before you commit to a date.
Other towns in Knox County
Common questions
What is the closest national park to Union?
Acadia National Park. It is about 53.5 mi (86.1 km) from Union, roughly 1 hr 43 min of driving.
Can I do a national park day trip from Union?
Yes — Acadia National Park is within about a three-hour drive.
How many national parks are near Union?
10 parks are within reach of Union, 1 of them close enough for a day trip.
Do you need a reservation for the national parks near Union?
None of them gate the entrance itself. 1 put a specific road, hike, or backcountry trip behind a permit or timed ticket — Cadillac Summit Road Vehicle Reservations at Acadia. These requirements are usually seasonal, so check the date you plan to arrive.
Where can you camp near Union?
Recreation.gov lists 4 campgrounds at the national parks within reach of Union. All of them are at Acadia National Park.
When is the best time to visit the parks near Union?
For Acadia National Park, the closest one, generally May through October. Either side of that, April and early November stays quieter.