Fee: Fees vary by season; contact the park.
About this park
Lake Sebago Beach is the swimming area on Lake Sebago in Harriman State Park. Its beach facility is under rehabilitation, and some facility closures are expected to last through mid-2027. Hydrilla, a federally listed invasive aquatic plant, was found in the lake in late 2022, and State Parks is managing it. Trail closures also affect the Victory Trail area.
Lake Sebago Beach - Harriman State Park FAQ
Where is Lake Sebago Beach - Harriman State Park located?
Lake Sebago Beach - Harriman State Park is in Bear Mountain, New York, at Palisades Interstate Park Commission. GPS coordinates: 41.193, -74.147. Get directions.
Is there an entrance fee at Lake Sebago Beach - Harriman State Park?
Fees vary by season; contact the park. Fees can change by season, so confirm with the park before you go.
How do I contact Lake Sebago Beach - Harriman State Park?
You can call (845) 429-8257. The park office can confirm RV site availability, hookups, length limits and current conditions.
Are there RV campgrounds near Lake Sebago Beach - Harriman State Park?
Yes. The closest RV-friendly campgrounds listed on ParkedRV are:
- Camp Gateway- Brooklyn Ny (43.5 mi, reservable)
- Indian Hollow (103.8 mi, reservable)
- West Thompson Lake Campground (127.6 mi, reservable)
How current is this information about Lake Sebago Beach - Harriman State Park?
This listing was last updated on October 5, 2026. If something is out of date, let us know and we'll fix it.