Harry Tappen Beach, Pool & Marina
Managed by Town of Oyster Bay
8 acres
Dog rules not recorded
Directionsto the parking lot
Photo: Antony-22 · CC BY-SA 4.0B−Outdoors
Outdoors in Sea Cliff
99% of residents live within a half mile of a park in Sea Cliff
28 acres are parks and preserves, 5.5 per 1,000 residents. 0.2 miles of mapped trail cross Sea Cliff, 0.2 per square mile of land. 3% of Sea Cliff’s land is conserved, about 20 acres.
Ahead of 52% of U.S. towns · #532 of 758 in New York. What drives it
Conserved land
3%
20 acres · of 1.1 sq mi of land
Trails
0.2 mi
0.2 per sq mi of land
Park land
28 ac
5.5 acres per 1,000 residents
Near a park
99%
of residents within ½ mile
Bike routes
0.5 mi
0.5 mi paths
Lakes & rivers
1
2 beaches
What kind of outdoors town is Sea Cliff?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Sea Cliff have?
On conserved land, trails, park land and how close residents live to a park, Sea Cliff is ahead of 52% of U.S. towns, #532 of 758 in New York. The share of residents near a park holds the grade up; park acres per resident pull it down.
B−
OutdoorsA character grade: shown, never part of Sea Cliff’s overall grade.
Conserved land3% of the land · typical NY town 5% · U.S. 4%B−Trails0.2 miles of mapped trail per square mile of land (0 mi) · NY 0.4 · U.S. 0.4C+Park land5.5 acres of park per 1,000 residents (28 acres) · NY 31 · U.S. 13CParks close to home99% of residents within a half mile of a park · NY 70% · U.S. 72%A
All U.S. towns we grade (21,298)Ahead of 52%
LessMore
New York towns of 2,500+ (758)Ahead of 30%
Water is 43% of Sea Cliff’s area (1 of 2 square miles), so every share here is of land; over land and water together, the conserved share would read 2%.
How sure. Graded on any three of the four inputs instead, the letter would range from C+ to B. Trails and many small parks come from OpenStreetMap, mapped by volunteers, so coverage varies from town to town; the half mile is a straight line from each census block, so a river or highway in the way isn’t counted against it.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
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
Directions go to the nearest trailhead or public parking.
Clifton Park
Park
5 acres
Dog rules not recorded
No trailhead mapped yet
Prospect Avenue Park
Managed by Village of Sea CLiff
1 acres
Dog rules not recorded
Directionsto the parking lot
All 7 parks & preserves
Harry Tappen Beach, Pool & Marina8 acres · Town of Oyster Bay
DirectionsClifton Park5 acres
Prospect Avenue Park1 acres · Village of Sea CLiff
DirectionsCentral Park1 acres
DirectionsRoslyn Park1 acres
Reservoir Park1 acres
DirectionsProspect Park1 acres
DirectionsWho protects it
20 conserved acres
3% of Sea Cliff’s land. Water is left out: Sea Cliff has 1.1 square miles of land and 0.8 of water, so the share counts land only. Who manages Sea Cliff’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Town or city19 ac
Other or Unknown Local Government8 ac
Local Park · 27 ac
Good to know
Conserved doesn’t always mean open to visitors. Public access isn’t recorded for 1 of 7 parcels. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| INC VILLAGE OF SEA CLIFF Land Local Park | Town or city | 13 | Open |
| TOWN OF OYSTER BAY Land Local Park | Town or city | 7 | Unknown |
| Clifton Park Local Park | Other or Unknown Local Government | 4 | Open |
| Central Park Local Park | Other or Unknown Local Government | 1 | Open |
| Hippie Park Local Park | Other or Unknown Local Government | 1 | Open |
| Roslyn Park Local Park | Other or Unknown Local Government | 1 | Open |
| Prospect Park Local Park | Other or Unknown Local Government | 1 | Open |
Things to do
6 places to go in Sea Cliff
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Beaches in Sea Cliff
Harry Tappen Beach
DirectionsSea Cliff Beach
DirectionsPlaygrounds in Sea Cliff
Sea Cliff Yacht Club Playground
DirectionsTappen Beach Playground
DirectionsPlus 2 playgrounds without a name on the map. Tap “Show all on map” to see them.
Trails & water
1 named trail and 1 lakes & rivers
Named trails
Sea Cliff Boardwalk0.2 mi
Lakes & rivers tap for directions
Biking & sports
0.5 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
0.5 mi
off-road bike paths
Courts & fields
5Basketball
4Baseball
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in Sea Cliff: April 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 | 13.2 | 14.4 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.8 | 9.3 |
| High (°F) | 40 | 42 | 49 | 61 | 70 | 80 | 85 | 83 | 76 | 65 | 55 | 45 |
| Rain (in) | 3.4 | 2.9 | 4.2 | 4.0 | 3.7 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 3.5 | 4.3 |
February is the driest month (2.9 in) and July the warmest (highs of 85 °F). 4.3 inches fall in December, the wettest month. The climate in Sea Cliff →
Next door
Sea Cliff and its neighbors
Tap a town to see its outdoors.
Oyster Bay172 miNorth Hempstead25 miGlen Cove11 miPort Washington2.0 miSea Cliff0.2 miGlen Head0.2 miGlenwood Landing0.0 mi
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Sea Cliff | 3% | 0.2 | 6 | 99% | B− |
| Oyster Bay | 21% | 1.7 | 26 | 96% | A+ |
| Glen Cove | 11% | 1.6 | 17 | 94% | A |
| Glen Head | — not graded: under 1,000 residents or part of its town | ||||
| Glenwood Landing | — not graded: under 1,000 residents or part of its town | ||||
| North Hempstead | 7% | 0.5 | 10 | 99% | B+ |
| Port Washington | — 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 Sea Cliff
How much of Sea Cliff is conserved land?
3% of its land, against a typical 5% for a New York town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Sea Cliff’s trails?
Harry Tappen Beach, Pool & Marina and Clifton Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Sea Cliff?
0.5 miles of bike routes are on the map: 0.5 of off-road paths.
Is there public land near Sea Cliff?
17,316 acres of parks and open public land lie inside Sea Cliff or within 10 miles of it (PAD-US), 28 of them inside the town line.
How much outdoors does Sea Cliff have?
Ahead of 52% of U.S. towns on the Outdoors grade, #532 of 758 in New York. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from Sea Cliff 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 →