Camping near Sullivan sits in the Monadnock Region of southwestern New Hampshire, where elevations range from 600 to over 3,000 feet. The area features multiple ponds and waterways along with diverse terrain from flat river valleys to dense woodland campsites. Summer temperatures typically reach the mid-80s during peak camping season, though evening temperatures can drop into the 50s even in July.
What to do
Hiking Mount Monadnock: Access trails from Gilson Pond Campground at Monadnock State Park, where the 3,165-foot summit offers spectacular views. "Extra stunning if you can hit it in fall!" notes Charlotte R., who recommends this hike even after completing thousands of miles on the Appalachian and Pacific Crest Trails.
Kayaking on quiet ponds: Pillsbury State Park provides excellent paddling opportunities on multiple small lakes. "Our site was waterfront and shared a small beach/kayak launch with the neighboring site. Kayaking on May Pond and discovering little islands and coves was a highlight," shares Jessica N., who visited in late May.
Swimming at state parks: Several campgrounds offer water access during warm months. "The swimming pond and beach is clean but can get crowded on a busy weekend. Frog pond is fun to explore," according to Ali B., who enjoyed the swimming areas at Greenfield State Park with her family.
What campers like
Private wooded sites: Many campgrounds offer secluded options with natural screening. At Greenfield State Park Campground, campers appreciate the layout. "Very large campground with lots of woods to block you from other campers. Dog friendly 🐶," mentions Erin R., highlighting the privacy features.
Updated shower facilities: Modern bathhouses are available at several locations. "The bathrooms are immaculate. The showers take coins but the facilities are some of the best I've seen while camping on State Park grounds," reports Jess G. about Fort Dummer State Park, noting the cleanliness standards.
Convenient camping stores: On-site markets reduce the need for extra trips. Wayne B. calls Ashuelot River Campground a "Great hidden gem" with "huge sites and a very helpful owner. What more could you want?"
What you should know
Variable cell service: Coverage differs significantly between campgrounds. At Pillsbury State Park, "Campsites have cell service," according to Brandon C., though signal strength varies between carriers.
Weather preparedness: New Hampshire weather can change rapidly. Alex S. notes about Monadnock State Park: "We happened to go on a very rainy weekend, and everything became mud at the site so we left early."
Highway noise: Some campgrounds experience traffic sounds. Lilia W. observed at Fort Dummer State Park: "Only downfall is since it's so close to the highway, you can hear traffic all night," despite the "beautifully wooded campground" with "plenty of privacy" at their site.
Tips for camping with families
Playgrounds and recreation: Several pet-friendly locations near Sullivan include family amenities. "The playground is really big with plenty to do. There's also a fishing pond and short hiking/biking trails," shares Erin M. about her experience at Spacious Skies Seven Maples.
Ranger
