1
William Cullen Bryant Preserve
Nature preserve
148 acres1.9 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
Outdoors · Roslyn Harbor
Roslyn Harbor, NY parks, trails & bike paths
About 22% of Roslyn Harbor is conserved land, roughly 166 acres. There are about 2.2 miles of mapped trails, and the biggest networks are in William Cullen Bryant Preserve (1.9 mi).
Conserved land, trails, parks and bike routes in Roslyn Harbor, measured from OpenStreetMap and USGS data.
At a glance
Roslyn Harbor outdoors
Conserved land
22%
166 of 759 acres
Trails
2.2 mi
1.8 mi per sq mi · 2 on conserved land
Parks & preserves
4
160 conserved acres per 1,000 residents
Bike routes
0.0 mi
0.0 mi lanes · 0.0 mi off-road paths
Conserved land is a share of the whole town area. Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Map
Conserved land, trails & bike routes
Tap a number or a place below to zoom in© OpenStreetMap contributors · USGS PAD-US
Places to walk
Parks & preserves with trails
Ranked by mapped trail miles. Directions go to the nearest marked trailhead or public parking.
2
Nassau County Museum of Art
Park
47 acres0.2 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
3
Cedarmere
Managed by Nassau County
9 acres0.1 mi of trail
Dog rules not recorded
No trailhead mapped yet
4
Roslyn Harbor Pond Park
Managed by Incorporated Village of Roslyn Harbor
1 acres
Dog rules not recorded
No trailhead mapped yet
Who protects the land
166 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Conserved doesn't always mean open to visitors. Public access isn't recorded for 2 of 5 parcels. The places listed above are parks and preserves people visit.
Biking & sports
Bike routes, courts & fields
- Painted or protected bike lanes0.0 mi
- Off-road bike paths0.0 mi
- Shoulders & shared lanes0.0 mi
Courts & fields
- Tennis14
- Basketball2
Counts include school and college facilities, which aren't always open to the public.
Next door
Roslyn Harbor and its neighbors
Towns whose outdoors data has been built so far.
| Town | Conserved | Trails | Parks & preserves |
|---|---|---|---|
| Roslyn Harbor | 21.9% | 2.2 mi | 4 |
| Roslyn | 5.4% | 0.2 mi | 4 |
| North Hempstead | 5.1% | 25.2 mi | 116 |
| Oyster Bay | 12.8% | 172.0 mi | 193 |
| Old Brookville | 4.2% | 2.8 mi | 2 |
Trail talk
Conditions & tips from neighbors
No recent posts about Roslyn Harbor's trails yet. Muddy, icy, a bridge out, where to park: a quick post helps the next person.
Sources: trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, Protected Areas Database of the United States (PAD-US). Measured against the Census town boundary.
How we measure
"Trails" are OpenStreetMap paths, bridleways, public tracks and unpaved footways, plus footways inside a park or preserve or on a named trail route. Sidewalks are left out. Areas are counted on a 20-meter grid, so overlapping parcels count once. "Conserved" includes conservation easements, which protect land from development but are usually private property. Trailheads are the nearest marked trailhead, public parking lot or information board within about 150 meters of a preserve. Dog rules come from OpenStreetMap when someone has tagged them; otherwise we show what's typical for the land manager, or say the rules aren't recorded.