During World War II, the site served as a naval training station that processed over 400,000 recruits.
The park contains the remnants of the former Sampson Air Force Base, which operated during the Korean War.
It is home to the Sampson Veterans Memorial Cemetery, which is situated on land excised from the park territory.
The site was once a major transit point for thousands of troops before they were deployed to the Pacific and European theaters.
The park's marina provides one of the few deep-water access points for large vessels on the eastern shore of Seneca Lake.
Sampson State Park occupies a former U.S. Navy training station on the eastern shore of Seneca Lake in the Finger Lakes region. It provides 309 campsites, including both tent and trailer sites, along with a significant marina featuring 108 boat slips. The park grounds contain the Sampson Naval Training Station Museum, which chronicles its history as a military facility during World War II and the Korean War. The landscape features flat, open fields interspersed with mature trees, providing direct access to the lake for swimming and fishing. Visitors can utilize miles of trails for hiking and bicycling, while the lakefront is a primary location for motorized boating. The site is designated as a significant wildlife habitat, notably supporting a large deer population. Recreational infrastructure includes tennis courts, a playground, and picnic shelters available for group use.
The marina docks during sunset looking across the expanse of Seneca Lake.
Bring insect repellent, as the lakefront environment and deer population lead to high tick and mosquito activity.
Check the wind forecast before planning a boat outing, as Seneca Lake can develop significant wave action quickly.
Visit the onsite military museum to understand the historical layout of the former base buildings.
Do not attempt to swim in areas outside the designated beach boundary, as the lake depth drops off rapidly.
Campsites and major facilities operate primarily from late spring through mid-autumn; limited access during winter months.
Leash laws for pets apply in all areas; alcohol consumption is restricted to designated campsites.