Wellesley Island State Park
New York State Park · Jefferson County
Wellesley Island State Park hours
Park open year round.
2026 Cabin Season:
Available year-round - Cabins 5, 6, 7, 8 & 10
Cabins 1, 2, 3, 4, & 9 - 4/24 - 11/21
Cottages: Available year-round.
Registration Bldg. Hours for 2026 season:
5/1 - 6/21: 8AM to 4PM (8am to 9pm on Friday and Saturday)
6/22 - 9/6: 8AM to 9PM
9/7 - 10/11: 8AM to 4PM (8am to 9pm on Friday and Saturday)
Hours as published by NY State Parks. Check the official page before a long drive.
About Wellesley Island State Park
The largest camping complex in the Thousand Islands, with 432 sites, a full-service marina and four boat launches. Perch, smallmouth bass, pike and muskie draw anglers; a sandy river beach handles the swimming.
Things to do
- 🥾 Hiking
- 🚲 Biking
- 🛶 Paddling
- 🏊 Swimming
- 🎣 Fishing
- ⛵ Boating
- 🧭 Geocaching
- 🏹 Hunting
Amenities & facilities
- 🏕️ Campsites
- 🚿 Showers
- 🛖 Cabins
- 🛝 Playground
- 🚤 Boat Ramp
- 🚐 RV Dump Station
- 🌿 Nature Center
Camping options
- Campsites
- Cabins
- Cottages
Facility hours
Minna Anthony Common Nature Center:
Operating Season (1st Friday in May – Columbus Day/Indigenous Peoples Day)
Monday – Thursday 9:00 a.m. – 3:00 p.m.
Friday – Sunday 9:00 a.m. – 6:00 p.m.
Off-Season (After Columbus Day/Indigenous Peoples Day)
Monday – Thursday 9:00 a.m. – 3:00 p.m.
Closed Monday and Tuesday
*Closed Christmas and Thanksgiving
2026 Swimming Season: 6/29 - 9/7, 11 am - 7 pm.
2026 Boat Dockage & Rentals: 5/1 - 10/11
2026 Camping Season: 5/1 - 10/11
Schedules for pools, museums, campgrounds, tours and other facilities inside the park, as published by NY State Parks — not the park's own opening hours.
Contact
Phone315-482-2722
Address44927 Cross Island Road, Fineview, NY 13640
🎒 Gear up for Wellesley Island State Park
Popular gear for what this park offers:
- Tents
- Kayaks
- Fishing rods
- Hiking boots
- Trail cameras
- Bike helmets
- Water shoes
- Life jackets
- Handheld GPS
- Bug spray
- Coolers
- Sleeping bags
- Camp chairs
- Camp stoves
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