David A. Sarnoff Preserve
Nature preserve
43 acres0.2 mi of trail
Dog rules not recorded
No trailhead mapped yetWebsite ↗
–Not graded
Outdoors in Riverside
39% of Riverside’s land is conserved, and virtually every resident lives within a half mile of a park
Virtually every resident lives within a half mile of a park. 39% of Riverside’s land is conserved, about 666 acres. 667 acres are parks and preserves, 165 per 1,000 residents.
Conserved land
39%
666 acres · of 2.6 sq mi of land
Trails
4.1 mi
1.5 per sq mi of land
Park land
667 ac
165 acres per 1,000 residents
Near a park
99%+
of residents within ½ mile
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.
Who protects it
666 conserved acres
39% of Riverside’s land. 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 parcels
| Parcel (PAD-US) | 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 |
Things to do
1 places to go in Riverside
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Playgrounds in Riverside
1 playground without a name on the map. Tap “Show all on map” to see it.
Trails & water
6 lakes & rivers
Lakes & rivers tap for directions
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
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.
When to get out
The best walking months in Riverside: 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 | 14.4 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 39 | 41 | 48 | 58 | 68 | 77 | 83 | 81 | 74 | 64 | 54 | 45 |
| Rain (in) | 3.5 | 3.2 | 4.5 | 4.0 | 3.3 | 3.9 | 3.1 | 3.7 | 3.9 | 4.4 | 3.7 | 4.6 |
July is the driest month (3.1 in) and the warmest (highs of 83 °F). 4.6 inches fall in December, the wettest month. The climate in Riverside →
Next door
Riverside 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 |
|---|---|---|---|---|---|
| Riverside | — not graded: under 1,000 residents or part of its town | ||||
| Riverhead | 17% | 1.2 | 161 | 94% | A+ |
| Southampton | 22% | 1.9 | 237 | 79% | A+ |
| Northampton | — not graded: under 1,000 residents or part of its town | ||||
| Flanders | — not graded: under 1,000 residents or part of its town | ||||
| Calverton | — not graded: under 1,000 residents or part of its town | ||||
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Riverside
Where can I hike in Riverside?
The longest trail networks: David A. Sarnoff Preserve, 0.2 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
Are dogs allowed on Riverside’s trails?
David A. Sarnoff Preserve and Ludlum Avenue Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Riverside?
4.2 miles of bike routes are on the map: 3.8 of painted or protected lanes and 0.4 of off-road paths. Named routes: Long Island Greenway—Phase IV.
Is there public land near Riverside?
31,124 acres of parks and open public land lie inside Riverside or within 10 miles of it (PAD-US), 667 of them inside the town line.
Trail talk
Conditions, parking and favorite walks from Riverside neighbors.
Share a tip
Sources
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 →