David A. Sarnoff Preserve
Nature preserve
43 acres0.2 mi of trail
🐕 Dog rules not recorded
No trailhead mapped yetWebsite ↗
Outdoors in Riverside
Parks, trails & the outdoors in Riverside
About 38% of Riverside is conserved land, roughly 666 acres. There are about 4.1 miles of mapped trails.
Conserved land
38%
666 of 1,749 acres
Trails
4.1 mi
1.5 mi per sq mi · 3 on conserved land
Parks & preserves
2
165 conserved acres per 1,000 people
Bike routes
4.2 mi
3.8 mi lanes · 0.4 mi paths
Lakes & rivers
6
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is David A. Sarnoff Preserve, with 0.2 miles. Directions go to the nearest trailhead or public parking.
Things to do
1 places to go in Riverside
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Playgrounds in Riverside
Trails & water
6 lakes & rivers
Lakes & rivers tap for directions
Who protects it
666 conserved acres
Who manages Riverside’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
County615 ac
State conservation45 ac
Town or city11 ac
Other or Unknown Local Government1 ac
Local Park · 626 acState Conservation Area · 45 acLocal Other or Unknown · 1 ac
Good to know
Conserved doesn’t always mean open to visitors. Public access isn’t recorded for 3 of 6 parcels. The walks above are places people visit.
The biggest protected places
| Place | Managed by | Acres | Public access |
|---|---|---|---|
| SUFFOLK COUNTY Land Local Park | County | 415 | Unknown |
| Peconic Bog County Park Local Park | County | 200 | Open |
| David A. Sarnoff Preserve State Conservation Area | State conservation | 45 | Open |
| SOUTHAMPTON TOWN Land Local Park | Town or city | 7 | Unknown |
| Unknown Park Local Park | Town or city | 4 | Open |
| Southampton Town Lands Local Other or Unknown | Other or Unknown Local Government | 1 | Unknown |
Biking & sports
4.2 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
3.8 mi
painted or protected bike lanes
0.4 mi
off-road bike paths
0.0 mi
shoulders & shared lanes
🚲
Long Island Greenway—Phase IVBike route
0.8 miCourts & fields
2Baseball
1Basketball
1Tennis
Includes school and college facilities, which aren’t always open to the public.
Next door
Riverside and its neighbors
Tap a town to see its outdoors.
| Town | Conserved | Parks |
|---|---|---|
| Riverside | 38.1% | 2 |
| Riverhead | 5.7% | 32 |
| Southampton | 10.5% | 51 |
| Northampton | 31% | 3 |
| Flanders | 56.7% | 5 |
| Calverton | 32.3% | 13 |
Trail talk
Conditions, parking and favorite walks from Riverside neighbors.
Weigh in
Is David A. Sarnoff Preserve the best walk in Riverside?
Your answer becomes a post in Town Square.
Share a tip
Trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, 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.