Few parks or trails are on the map in Northwest Harbor
The biggest trail networks: Grace Estate Preserve (6 mi), Linda Gronlund Memorial Nature Preserve (1.8 mi), Two Holes of Water Park (0.7 mi). 26% of Northwest Harbor’s land is conserved, about 2,396 acres. 1,595 acres are parks and preserves, 306 per 1,000 residents.
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Pick a walk
The longest trail network is Grace Estate Preserve, with 6 miles. Directions go to the nearest trailhead or public parking.
Linda Gronlund Memorial Nature Preserve
Two Holes of Water Park
Wilson’s Grove Preserve
All 6 parks & preserves
2,396 conserved acres
26% of Northwest Harbor’s land. Water is left out: Northwest Harbor has 14.5 square miles of land and 5.6 of water, so the share counts land only. Who manages Northwest Harbor’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Conserved doesn’t always mean open to visitors. 3 acres are conservation easements, usually private land. Public access isn’t recorded for 6 of 28 parcels. The walks above are places people visit.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| SUFFOLK COUNTY PARK COMM Land Local Park | County | 821 | Open |
| Grace Estate Town Preserve Local Park | Other or Unknown Local Government | 530 | Open |
| Linda Gronlund Memorial Nature Preserve State Conservation Area | State conservation | 287 | Open |
| Unknown Conserfation Local Conservation Area | County | 227 | Open |
| TOWN OF EAST HAMPTON Land Local Park | Town or city | 212 | Unknown |
| East Hampton Town Lands Local Conservation Area | Other or Unknown Local Government | 152 | Restricted |
| Little Northwest Creek State Tidal Wetland State Conservation Area | State conservation | 137 | Restricted |
| Sammys Town Beach Local Recreation Area | Town or city | 114 | Open |
| SUFFOLK CNTY PARK COMM Land Local Park | Town or city | 94 | Unknown |
| Three Mile Harbor County Park Local Conservation Area | Town or city | 55 | Open |
5 smaller protected places aren’t shown.
7 places to go in Northwest Harbor
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Plus 2 beaches without a name on the map. Tap “Show all on map” to see them.
1 boat launch without a name on the map. Tap “Show all on map” to see it.
1 picnic area without a name on the map.
1 campground without a name on the map.
4 named trails and 4 lakes & rivers
1.5 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Includes school and college facilities, which aren’t always open to the public.
The best walking months in Northwest Harbor: May to September
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.5 | 10.6 | 11.8 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 40 | 41 | 47 | 56 | 66 | 75 | 81 | 80 | 74 | 64 | 54 | 45 |
| Rain (in) | 3.5 | 3.1 | 4.4 | 3.9 | 3.4 | 3.6 | 3.0 | 3.6 | 3.8 | 4.5 | 3.7 | 4.4 |
July is the driest month (3.0 in) and the warmest (highs of 81 °F). 4.5 inches fall in October, the wettest month. The climate in Northwest Harbor →
Northwest Harbor and its neighbors
Tap a town to see its outdoors.
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Northwest Harbor | — not graded: under 1,000 residents or part of its town | ||||
| East Hampton North | — not graded: under 1,000 residents or part of its town | ||||
| Springs | — not graded: under 1,000 residents or part of its town | ||||
| Wainscott | — not graded: under 1,000 residents or part of its town | ||||
| Sag Harbor | 12% | 1.0 | 40 | 99%+ | A+ |
| East Hampton | 34% | 2.6 | 334 | 76% | A+ |
| Shelter Island | 34% | 1.7 | 740 | 81% | A+ |
| Southampton | 22% | 1.9 | 237 | 79% | A+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Northwest Harbor
Where can I hike in Northwest Harbor?
The longest trail networks: Grace Estate Preserve, 6 miles; Linda Gronlund Memorial Nature Preserve, 1.8 miles; Two Holes of Water Park, 0.7 miles; Wilson’s Grove Preserve, 0.5 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
Are dogs allowed on Northwest Harbor’s trails?
Grace Estate Preserve and Linda Gronlund Memorial Nature Preserve don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Northwest Harbor?
1.5 miles of bike routes are on the map: 1.5 of painted or protected lanes.
Is there public land near Northwest Harbor?
15,216 acres of parks and open public land lie inside Northwest Harbor or within 10 miles of it (PAD-US), 1,595 of them inside the town line.
Trail talk
Conditions, parking and favorite walks from Northwest Harbor neighbors.
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →