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Outdoors in Mastic Beach

Beaches, parks & trails in Mastic Beach

About 18% of Mastic Beach is conserved land, roughly 694 acres. There are about 6.6 miles of mapped trails, and the biggest networks are in William Floyd Estate (4.9 mi).

Conserved land
18%
694 of 3,819 acres
Trails
6.6 mi
1.1 mi per sq mi · 5 on conserved land
Parks & preserves
6
41 conserved acres per 1,000 people
Bike routes
0.1 mi
0.1 mi lanes
Lakes & rivers
1
4 beaches · 2 boat launches

What kind of outdoors town is Mastic Beach?

Read from the map. The page puts what stands out first.

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
★ What stands out · Things to do

7 places to go in Mastic Beach

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

Beaches in Mastic Beach
🏖️
Unnamed beach
Directions
🏖️
Unnamed beach
Directions
🏖️
Unnamed beach in William Floyd Estate
Directions
🏖️
Unnamed beach in Osprey Park
Directions
Places to walk

Pick a walk

The longest trail network is William Floyd Estate, with 4.9 miles. Directions go to the nearest trailhead or public parking.

William Floyd Estate

Nature preserve
608 acres4.9 mi of trail
Blue TrailYellow TrailBlue Trail AdditionRed Trail+1
🐕 Dog rules not recorded
Directionsto the parking lotWebsite ↗

Fire Island National Seashore

Managed by National Park Service
617 acres
🐕 Dogs usually limited
No trailhead mapped yetWebsite ↗

Johns Neck State Tidal Wetland

Managed by New York State Department of Environmental Conservation
50 acres
🐕 Dog rules not recorded
No trailhead mapped yetWebsite ↗

Robert Miller Park

Park
6 acres0.1 mi of trail
🐕 Dog rules not recorded
Directionsto the parking lot
All 6 parks & preserves
🌲
William Floyd Estate608 acres · 4.9 mi of trail
Directions
🌳
Robert Miller Park6 acres · 0.1 mi of trail
Directions
🌲
Fire Island National Seashore617 acres · National Park Service
🌲
Johns Neck State Tidal Wetland50 acres · New York State Department of Environmental Conservation
🌳
Bayview Park5 acres
Directions
🌳
Osprey Park2 acres · Town of Brookhaven, NY
Directions
Trails & water

5 named trails and 1 lakes & rivers

Named trails
Blue Trail2.0 mi
Yellow Trail0.9 mi
Blue Trail Addition0.7 mi
Red Trail0.2 mi
Squirrel Lane Trail0.1 mi
Lakes & rivers tap for directions
Who protects it

694 conserved acres

Who manages Mastic Beach’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.

National Park Service609 ac
State conservation52 ac
Town or city25 ac
USDA easements (NRCS)6 ac
National Lakeshore or Seashore · 609 acState Conservation Area · 52 acLocal Park · 25 acConservation Easement · 6 ac
Good to know

Conserved doesn’t always mean open to visitors. 10 acres are conservation easements, usually private land. Public access isn’t recorded for 1 of 7 parcels. The walks above are places people visit.

The biggest protected places
PlaceManaged byAcresPublic access
Fire Island National Seashore
National Lakeshore or Seashore
National Park Service609Open
Johns Neck State Tidal Wetland
State Conservation Area
State conservation52Open
TOWN OF BROOKHAVENC/O DEPT OF FINANCE Land
Local Park
Town or city14Unknown
Unknown Park
Local Park
Town or city8Open
Osprey Park
Local Park
Town or city3Open
Biking & sports

0.1 miles of bike routes

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

0.1 mi
painted or protected bike lanes
0.0 mi
off-road bike paths
0.0 mi
shoulders & shared lanes
Courts & fields
3Baseball

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

History along the way

1 old cemetery

History →
🪦
Floyd Family CemeteryCemetery
Directions
Next door

Mastic Beach and its neighbors

Mastic Beach has the second most mapped trails of the 2 towns around it. Tap a town to see its outdoors.

TownConservedParks
Mastic Beach18.2%6
Shirley24.7%10

Trail talk

Conditions, parking and favorite walks from Mastic Beach neighbors.

Town Square →
Weigh in
Is William Floyd Estate the best walk in Mastic Beach?

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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.

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