Camping sites near Sullivan, New Hampshire spread across a varied landscape of hills and valleys in the southwestern portion of the state. Elevations range from about 800 to 1,000 feet throughout the region, creating a mix of woodland and open meadow camping environments. Nighttime temperatures can drop significantly even in summer months, with average summer lows in the 50s and occasional dips into the 40s in late spring and early fall.
What to do
Paddling adventures: Ashuelot River provides excellent kayaking opportunities near Ashuelot River Campground, where campers can bring their own equipment or rent on-site. "We brought our kayaks and had no problem kayaking on the flat surface river," notes Karen O. The campground also offers a shuttle service for water sports enthusiasts.
Rail trail access: Several campgrounds connect to local rail trails for biking and hiking. "You can pick up the Ashuelot Rail Trail at the campground. They have canoes and kayaks on site, plus a shuttle service for water sports or biking," explains Carry M. These converted railway corridors provide flat, accessible routes suitable for all skill levels.
Playground facilities: For families with younger children, Spacious Skies Seven Maples offers extensive play facilities. "The pool is amazing for kids of all ages with water slides and a splash area... The playground is really big with plenty to do," shares Erin M. The campground also includes a fishing pond for additional recreation.
What campers like
Waterfront locations: Many campers appreciate the direct water access at several area campgrounds. At Pillsbury State Park Campground, "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," reports Jessica N. These waterfront sites typically fill quickly during peak season.
Secluded site options: Campers seeking more privacy can find remote options throughout the region. "Pillsbury State Park is a great place to get away from it all. There are great hikes that you can get to right from your campsite, connecting to the Monadnock-Sunapee greenway," writes Matthew S. Several campgrounds offer walk-in or boat-in sites for those willing to pack in gear.
Clean facilities: Many reviewers consistently note the cleanliness of campground facilities in the Sullivan area. At Gilson Pond Area Campground, "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," according to Jess G. Most campgrounds maintain well-serviced restrooms despite high visitor numbers.
What you should know
Cash only at state parks: Several state parks in the region operate on cash-only systems for on-site purchases. At Pillsbury State Park, "Everything is cash here, no cards accepted except when reserving a site online," notes Brandon C. Plan accordingly by bringing sufficient cash for firewood, rentals, or other needs.
Limited cell service: Connectivity remains spotty throughout the area, particularly at more remote campgrounds. For safety, download offline maps and campground information before arrival. Some specific sites may get limited reception—"If you have Verizon and you're at campsite 34 you can get a little service," mentions Lisa P. about Pillsbury State Park.
Leech concerns in some lakes: Swimmers should be aware that some bodies of water in the region have leech populations. According to one camper at Pillsbury State Park, "Swimming in the stream is safe but the lake is loaded with leeches!" Consider bringing water shoes and checking with rangers about current conditions.
Tips for camping with families
Early reservations required: Family-friendly campgrounds fill quickly, especially for holiday weekends. At Fort Dummer State Park Campground, one visitor noted, "Sites are large and well maintained. Plenty of space between sites." Plan to book at least 3-6 months in advance for summer stays.
Pool options: For families wanting swimming options beyond natural water bodies, several campgrounds offer pools. "The pool was sparkling clean and the best part, not a bunch of screaming kids running around," reports Rebecca S. about Brattleboro North KOA. These facilities typically operate from late May through early September, weather permitting.
Campground-specific pet policies: Policies regarding pets vary significantly between locations. One critical note about Mount Monadnock: "Dogs aren't allowed anywhere in Monadnock State Park, and while we were sad to leave our goodest boy at home, he would have hated the hike up the mountain anyway—too many rock scrambles," explains Tara S. Always check current pet policies before booking.
Tips from RVers
Site size considerations: Many campgrounds in the region have limitations on RV size. At Swanzey Lake Camping Area, one camper reported, "Site 12 a little tight for 21 ft travel trailer." For larger rigs, call ahead to discuss specific site options and access limitations.
Electric reliability: Some campgrounds have issues with consistent power supply. One RVer noted at Seven Maples Campground, "Had issues with 30 amp service at site was not providing enough power, could not run all my campers amenities." Consider bringing a surge protector and inquire about recent electrical upgrades when booking.
Bridge clearance warning: Access routes to some campgrounds include covered bridges or low clearance areas. At Ashuelot River Campground, "Highly suggest reading the directions on the campgrounds website about the covered bridge you're not allowed to cross—we discovered this the hard way," cautions Mallory P. Always research access routes specifically for RVs before arrival.
