Nature Preserves

A nature preserve is any area of land or water dedicated to being maintained as much as possible in its natural condition. These natural areas are chosen for preservation based on the unique and valuable ecological assets situated within their boundaries. Some have been acquired through private funding and others through local environmental bond programs. They are protected not only as a means to preserve the land in its natural state, but to recharge our underground acquifers, filter harmful stormwater runoff before it enters our beaches and bays, clean our air, provide habitat for plants and animals and to create a multi-use recreational resource to be enjoyed by all.

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.

Become a Member

Your donation will help us acquire the land that matters most, maintain protected open space and provide valubale educational program.


Share your time, knowledge and skills to help us preserve the lands we’ve protected.200


Perched above the historic hamlet of Cold Spring Harbor, this stunning 32-acre preserve with a mature hardwood forest,  protects air quality and provides erosion control throughout its steep ravines.


Hope Goddard Iselin Preserve

A 42-acre preserve in Upper Brookville, which contains a beautiful hardwood forest, a white pine plantation, which was planted in the 1930s, and a colorful meadow.


Humes Japanese Stroll Garden, 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.

Shore Road Sanctuary, Cold Spring Harbor

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.