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Mount sinai congregational churchPhoto: Iracaz · CC BY-SA 3.0
–Not graded
Outdoors in Mount Sinai

9% of Mount Sinai’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. The biggest trail networks: Chandler Estate County Park (1.6 mi), Cedar Beach Town Park (1.5 mi). 9% of Mount Sinai’s land is conserved, about 332 acres.

Conserved land
9%
332 acres · of 6.0 sq mi of land
Trails
10 mi
1.7 per sq mi of land
Park land
284 ac
26 acres per 1,000 residents
Near a park
99%+
of residents within ½ mile
Bike routes
3.3 mi
1.0 mi lanes · 2.3 mi paths
The map

Conserved land, trails & bike routes

Tap a number to zoom to a park. Tap a layer to hide it.

1234
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 Chandler Estate County Park, with 1.6 miles. Directions go to the nearest trailhead or public parking.

Chandler Estate County Park

Park
41 acres1.6 mi of trail
Dog rules not recorded
Directionsto the parking lot

Cedar Beach Town Park

Park
58 acres1.5 mi of trail
Dog rules not recorded
Directionsto the parking lot

North Shore Rail Trail

Park
23 acres
Dog rules not recorded
Directionsto the parking lot

Heritage Park

Park
18 acres
Dog rules not recorded
Directionsto the parking lot
All 6 parks & preserves
Chandler Estate County Park41 acres · 1.6 mi of trail
Directions
Cedar Beach Town Park58 acres · 1.5 mi of trail
Directions
North Shore Rail Trail23 acres
Directions
Heritage Park18 acres
Directions
Mount Sinai Tidal Wetlands Area5 acres
Fowler Park4 acres
Who protects it

332 conserved acres

9% of Mount Sinai’s land. Water is left out: Mount Sinai has 6.0 square miles of land and 1.4 of water, so the share counts land only. Who manages Mount Sinai’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.

Town or city210 ac
County104 ac
Regional Water Districts16 ac
State conservation6 ac
Local Park · 269 acLocal Other or Unknown · 61 acState Conservation Area · 6 acLocal Conservation Area · 1 ac
Good to know

Conserved doesn’t always mean open to visitors. Public access isn’t recorded for 5 of 10 parcels. The walks above are places people visit.

The biggest protected parcels
Parcel (PAD-US)Managed byAcresPublic access
TOWN OF BROOKHAVENC/O DEPT OF FINANCE Land
Local Park
Town or city205Unknown
Long Island Sound
Local Other or Unknown
County45Unknown
Suffolk County Park Land
Local Park
County40Open
North Shore Heritage Park
Local Park
County19Open
SUFFOLK COUNTYWATER AUTHORITY Land
Local Other or Unknown
Regional Water Districts10Unknown
SUFFOLK CTY WATER AUTH Land
Local Other or Unknown
Regional Water Districts6Unknown
Mount Sinai State Tidal Wetland
State Conservation Area
State conservation6Open
Unknown Park
Local Park
Town or city5Open
TOWN OF BROOKHAVEN PRK HRBR & RECREATIONC/O DEPT OF FINANCE Land
Local Park
Town or city1Unknown
Things to do

18 places to go in Mount Sinai

Beaches, playgrounds, peaks, falls and more. Pick a kind.

Beaches in Mount Sinai
Cedar Beach
Directions

Plus 4 beaches without a name on the map. Tap “Show all on map” to see them.

Biking & sports

3.3 miles of bike routes

Bike lanes are often missing from the map in smaller towns, so that number is likely low.

1.0 mi
painted or protected bike lanes
2.3 mi
off-road bike paths
0.1 mi
shoulders & shared lanes
Courts & fields
23Tennis
9Baseball
4Basketball
1Football
1Soccer

Includes school and college facilities, which aren’t always open to the public.

When to get out

The best walking months in Mount Sinai: 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.

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)9.510.611.813.314.515.114.813.812.411.09.89.2
High (°F)394148596877838175645444
Rain (in)3.63.24.54.23.64.13.43.83.94.43.64.6

February is the driest month (3.2 in) and July the warmest (highs of 83 °F). 4.6 inches fall in December, the wettest month. The climate in Mount Sinai →

Next door

Mount Sinai and its neighbors

Mount Sinai has the second most mapped trails of the 6 towns around it. Tap a town to see its outdoors.

TownConserved
of land
Trail mi
per sq mi
Park acres
per 1,000
Near a park
½ mile
Outdoors
Mount Sinai— not graded: under 1,000 residents or part of its town
Port Jefferson2%0.4497%B−
Miller Place— not graded: under 1,000 residents or part of its town
Terryville— not graded: under 1,000 residents or part of its town
Coram— not graded: under 1,000 residents or part of its town
Port Jefferson Station— 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 Mount Sinai

Where can I hike in Mount Sinai?

The longest trail networks: Chandler Estate County Park, 1.6 miles; Cedar Beach Town Park, 1.5 miles. Each one is on the map above, with directions to the nearest trailhead or parking.

Are dogs allowed on Mount Sinai’s trails?

Chandler Estate County Park and Cedar Beach Town Park don’t have dog rules recorded on the map; check the signs at the trailhead.

Where can I bike in Mount Sinai?

3.3 miles of bike routes are on the map: 1.0 of painted or protected lanes, 2.3 of off-road paths and 0.1 of shoulders and shared lanes.

Is there public land near Mount Sinai?

19,897 acres of parks and open public land lie inside Mount Sinai or within 10 miles of it (PAD-US), 284 of them inside the town line.

Trail talk

Conditions, parking and favorite walks from Mount Sinai neighbors.

Town Square →
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 →