Our mission is “To support and enhance Caumsett State Historic Park Preserve as a unique and historic environment on Long Island’s north shore. The Foundation is dedicated to education, low-impact recreation, historic and environmental preservation and conservation of the scenic value, natural heritage and cultural history of the site.” The Caumsett Foundation has been recognized as a model “friends group.” We work closely with New York State Parks and the community toward a common mission: to support and enhance Caumsett State Historic Park Preserve as a unique and historic environment.Learn More
There's many ways to enjoy the park, whether it's as a supporting member, volunteer, taking part in our events, donating or just visiting this beautiful resource.
Learn about the Foundation’s mission and the impact we make in the Park.Read More
Learn about Foundation programs at the park and how to register.Read More
Learn about the park including hours of operation, directions, fees, and maps.Read More
Caumsett State Historic Park Preserve contains the only known breeding colony of the Baltimore Checkerspot Butterfly on all of Long Island. While this butterfly is found throughout New York State there have only been 4 records on Long Island over a period of 40 years prior to its discovery at Caumsett in 2009.
It was clear that the last phase of the “Welcome to Caumsett” plan would be to improve the landscape surrounding the Park Offices, Kiosk, Café and the Shed Seating area.
The Park came to a standstill in early September 2021 with the arrival of a microburst caused by Hurricane Ida which toppled 200 trees. The Caumsett Foundation wanted to help address this enormous loss, especially in the front of the Park.