Since 2003, North Shore Land Alliance has been instrumental in the protection of more than 1,200 acres of land featuring a variety of habitats from fields to forests and wetlands to farmlands.  The Land Alliance welcomes passive recreational use of our preserves. They are ready and waiting for walkers, birders, photographers and everyone who enjoys the beauty of nature.

To report a concern or for more information about these preserves we own or manage, please contact us at 516-922-1028.

Some preserves may be closed some days due to potentially hazardous weather-related conditions. 

Cordelia H. Cushman Preserve

15 Acres

Mature hardwood forest comprises nearly 100 percent of this pristine 15-acre preserve. Chestnut and white oak trees dominate the canopy with some maple, beech and tulip trees making a presence as well.

Cushman Woods

28 Acres

This hilly, 28-acre forest is brimming with big trees and boasts an intricate trail system that was once a popular fox-hunting route for the Meadow Brook Hunt. Many bird species, fox and other mammals make their home on this parcel of land.

Fox Hollow Preserve

26 Acres

Fox Hollow Preserve contains an unusual variety of distinct forest types that feature a diversity of oak, beech and other hardwoods; white pine woodland and shrub layers dominated by mountain laurel and maple-leaved viburnum. No designated parking available at this preserve.

Hope Goddard Iselin Preserve

42 Acres
Chicken Valley Road, Upper Brookville, NY

Hope Goddard Iselin Preserve contains a beautiful hardwood forest, a white pine plantation, which was planted in the 1930s, and a colorful meadow. The preserve is dedicated to Mrs. Iselin, who was devoted to nature over her 100 years of life and was gifted to The Nature Conservancy (TNC) in the 1970s

Humes Preserve

27 Acres
349 Oyster Bay Road, Mill Neck

The Humes Preserve is at the heart of a corridor of 150 protected contiguous acres of open spaces that also includes the adjoining Shu Swamp, Francis Pond conservation areas and the Humes Japanese Stroll Garden.

Walks in the Woods

John P. Humes Japanese Stroll Garden

7 Acres
2 Dogwood Lane, Mill Neck

This unique and historic 7-acre gem of landscape design and woodland boasts an impressive collection of North American and Asian plants that constitute a beautiful Japanese landscape and impart a meditative experience.

Louis C. Clark Sanctuary

8 acres
Valentines Lane, Old Brookville

One of our most ecologically diverse preserves also happens to be one of our smallest. This 8-acre property contains a mixture of upland forest and freshwater wetlands with trails traversing the narrow strip of forest separating Valentines Lane from the wetland in the northern parcel.

Red Cote Preserve

30 Acres

This 30-acre property boasts a beautiful mix of woodlands and sweeping meadows. The preserve was once part of a farm purchased by R.C. Leffingwell in 1924. It was acquired from his descendants with funding from Nassau County’s 2004/2006 Environmental Bond Act.

Shore Road Sanctuary

8 Acres

This 8-acre parcel in Cold Spring Harbor was once an ExxonMobil fueling site. It has been transformed into a thriving grassland preserve boasting a beautiful shoreline, salt marsh and wet meadow where you will find standing water after rainstorms and ice in winter.

Tiffany Creek Preserve

200 acres
Sandy Hill Rd at Berry Hill Rd, Oyster Bay Cove

A mix of ecological communities can be found on this spectacular parcel of land such as old growth woodlands and oak forest, extensive fields, freshwater wetlands and a large pond, the latter of which was acquired by Nassau County with Environmental Bond Act funding.

Upper Francis Pond

25 Acres
Oyster Bay Road, Mill Neck

This 25-acre preserve is an integral part of a corridor of 150 contiguous acres of protected open space in the Beaver Brook watershed, which includes the Humes Estate and Japanese Stroll Garden and the North Shore Wildlife Sanctuary’s enchanting Shu Swamp.


32 Acres
Mowbray Lane, Cold Spring Harbor

Perched above the historic hamlet of Cold Spring Harbor, this stunning 32-acre preserve at one time was being considered for development into thirteen house lots. Mature hardwood forest, which comprises over 60 percent of the preserve, protects air quality and provides erosion control throughout its steep ravines.