National parks near Brentwood, New York
Thousand Islands National Park is the closest national park to Brentwood, New York — 282 mi (454 km) in a straight line, which works out to roughly 7 hr 8 min behind the wheel.
Nothing near Brentwood gates the entrance itself, but 2 of the parks in range put a road, hike, or backcountry trip behind a permit or timed ticket.
Brentwood has a population of about 60,664.
National parks near Brentwood
| Park | Straight-line distance | Estimated drive | Realistic trip |
|---|---|---|---|
| Thousand Islands National Park | 282 mi (454 km) | 7 hr 8 min | Worth a longer road trip |
| Shenandoah National Park | 313 mi (503 km) | 7 hr 51 min | Worth a longer road trip |
| Acadia National Park | 356 mi (572 km) | 8 hr 52 min | Worth a longer road trip |
| Rouge National Park | 375 mi (603 km) | 9 hr 19 min | Worth a longer road trip |
| La Mauricie National Park | 416 mi (670 km) | 10 hr 18 min | Worth a longer road trip |
| Cuyahoga Valley National Park | 434 mi (698 km) | 10 hr 43 min | Worth a longer road trip |
| Georgian Bay Islands National Park | 439 mi (706 km) | 10 hr 50 min | Worth a longer road trip |
| New River Gorge National Park | 458 mi (737 km) | 11 hr 17 min | Worth a longer road trip |
| Kejimkujik National Park | 478 mi (770 km) | 11 hr 46 min | Worth a longer road trip |
| Point Pelee National Park | 488 mi (785 km) | 11 hr 59 min | Worth a longer road trip |
What to book before you leave Brentwood
| Park | What needs booking | Covers | How |
|---|---|---|---|
| Shenandoah | Old Rag Mountain Tickets | One road or area | Timed reservation |
| Acadia | Cadillac Summit Road Vehicle Reservations | One road or area | Timed reservation |
Camping near Brentwood
Within reach of Brentwood, 14 campgrounds across 4 parks appear on Recreation.gov: 5 at New River Gorge, 4 at Shenandoah, 4 at Acadia, and 1 at Cuyahoga Valley.
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
Thousand Islands 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 Brentwood 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 |
|---|---|---|
| Thousand Islands → Rouge | 165 mi (266 km) | 4 hr 22 min |
| Thousand Islands → La Mauricie | 222 mi (358 km) | 5 hr 43 min |
Planning a trip from Brentwood
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 Suffolk County
Common questions
What is the closest national park to Brentwood?
Thousand Islands National Park. It is about 282 mi (454 km) from Brentwood, roughly 7 hr 8 min of driving.
Can I do a national park day trip from Brentwood?
Not comfortably. The nearest parks are far enough that you will want at least one night away.
How many national parks are near Brentwood?
10 parks are within reach of Brentwood, 0 of them close enough for a day trip.
Do you need a reservation for the national parks near Brentwood?
None of them gate the entrance itself. 2 put a specific road, hike, or backcountry trip behind a permit or timed ticket — Old Rag Mountain Tickets at Shenandoah and 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 Brentwood?
Recreation.gov lists 14 campgrounds at the national parks within reach of Brentwood. They are spread across 4 of those parks.
When is the best time to visit the parks near Brentwood?
For Thousand Islands National Park, the closest one, generally May through October. Either side of that, April and early November stays quieter.