Greenfield State Park

Greenfield, New Hampshire
Established 1939
400 acres

Greenfield State Park is a quiet lakeside park centered on Otter Lake in the Monadnock Region. Visitors come for swimming, paddling, picnicking, and a relaxed campground setting surrounded by forest and rolling hills.

Entrance Fee

8

Visiting with Dogs

Dogs allowed in designated areas; must be leashed, under control, and owners must clean up after them.

Visitor Tips & Reviews

What Visitors Say

Quiet lakefront camping, swimming, kayaking, and scenic wooded trails make Greenfield State Park a relaxing getaway. Visitors love the peaceful atmosphere, family-friendly beach, and natural beauty.

Tips from Visitors

  • Arrive early on summer weekends for easier parking.
  • Bring cash or card for day-use fees and rentals.
  • Pack bug spray for wooded trails and lakeside areas.
  • Check swimming conditions before entering the water.
  • Keep pets leashed and clean up after them.

Best Time to Visit

The best time to visit Greenfield State Park is from late June through early September, when Otter Lake is warm enough for swimming and paddling. Weekdays are typically quieter, while summer weekends offer the liveliest beach atmosphere.

Amenities

Kids PlaygroundSwimming BeachRestroomsParkingPicnic AreasCampgroundBoat LaunchPavilionDrinking WaterConcession Stand

Nearby Attractions

Explore these attractions near Greenfield State Park:

  • Peterborough Town House and Downtown Peterborough
    A charming nearby town center with shops, dining, and local culture for visitors combining outdoor recreation with a small-town stop.
    16 miles away
  • Mount Monadnock State Park
    One of New Hampshire’s most famous hiking destinations, known for expansive summit views and a classic mountain climb.
    22 miles away
  • Miller State Park
    A scenic mountaintop park with a short drive to summit views and picnic areas.
    24 miles away

Things to Do at Greenfield State Park

SwimmingPaddlingCampingPicnickingFishing

Camping at Greenfield State Park

Greenfield State Park offers tent camping and RV sites with basic amenities; reservations recommended. Seasonal operation; check current availability.

Hiking Trails

Greenfield State Park offers easy, family-friendly day hiking with a relaxed, scenic feel. Trails are generally short and well-marked, winding through mixed woods, around the pond, and past quiet wetlands. Hikers often enjoy the peaceful setting, birdwatching, and gentle terrain more than challenging elevation. It’s a good choice for a casual walk, especially in spring, summer, and fall.

Pond Loop Trail

Easy

A scenic loop around Otter Lake with wooded sections, shoreline views, and gentle terrain; a great introductory hike in the park.

1.8 mi
45-60 minutes
50 ft gain
Easy difficulty

Greenfield State Park Trail Network Loop

Easy to Moderate

A longer loop combining multiple park paths through forested areas and near the lake, offering a quiet walk with varied scenery.

3.2 mi
1.5-2 hours
120 ft gain
Easy to Moderate difficulty

Shoreline Connector Trail

Easy

A relaxed out-and-back or loop option that follows the lake edge and connects to picnic and beach areas, ideal for a shorter outing.

2.4 mi
1-1.25 hours
70 ft gain
Easy difficulty

Woodland Ridge Trail

Moderate

The park’s most challenging option, with longer forest stretches, rolling terrain, and a more immersive backcountry feel.

4 mi
2-2.5 hours
220 ft gain
Moderate difficulty

Directions

From Route 101, take the Greenfield exit and follow local roads west to Campground Road. The park entrance is signed and located near Otter Lake in Greenfield.

Frequently Asked Questions

What are the camping options at Greenfield State Park?

The park is known for its campground with sites for tents and RVs, plus some sites near the lake. Visitors often mention it as a quiet, family-friendly place, but reservations are recommended, especially in summer.

Is Greenfield State Park good for swimming?

Yes. The park has a sandy beach on Otter Lake that is popular for swimming. Reviews often note the water is calm and good for families, though the beach can get busy on warm weekends.

Can I bring a boat or kayak to Greenfield State Park?

Yes, non-motorized boating like kayaks, canoes, and paddleboards is commonly enjoyed on Otter Lake. Visitors often like the peaceful water, but it’s best to check current park rules before launching.

Are pets allowed at Greenfield State Park?

Pets are typically allowed in designated areas and on leashes, but not usually on the beach or in swimming areas. Many visitors say the park is pet-friendly overall, as long as you follow posted rules.

What activities are available besides swimming and camping?

Visitors often enjoy hiking, fishing, picnicking, and paddling. The park is praised for being relaxed and scenic, with easy ways to spend a day outdoors without needing a lot of planning.

Is Greenfield State Park family-friendly?

Yes. Many reviews describe it as a peaceful, family-friendly park with a beach, campground, and simple outdoor activities. It’s a good choice for a low-key day trip or weekend stay.

Location
camping and backpacking gear

Don’t Forget the Essentials

Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.

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