RV & camping guide
Thousand Islands by RV
Your route
ART
Watertown International Airport
Thousand Islands
About 45 min · 35 mi by car, no stops. Estimate only.
Vehicle & road notes
Which vehicle
Standard cars are ideal for Seaway Trail driving. RVs should check bridge clearance for Wellesley Island.
fuel
Marine and Road Supply
Standard fuel is readily available in Alexandria Bay and Clayton. Boaters should identify marinas with marine-grade fuel before entering the remote island channels.
signal
Border Connectivity
Cell signals may frequently switch to Canadian towers near the border. Check roaming settings to avoid unexpected international data charges while on the water.
parking
Mainland Launch Points
Public parking in Clayton is concentrated near the museum and waterfront. Peak summer weekends see lots fill quickly near the Alexandria Bay tour docks.
Campground reservations
Historic Island Access and Seasonal Tour Planning
Access to Heart Island and Dark Island is restricted to operating seasons, typically mid-May through October. While no park entry permit is required, boat tour tickets and castle admission are separate costs and often sell out during summer weekends. State park camping at Wellesley Island can book out nine months in advance, requiring an official New York State Parks check.
Official sourceWhere to park the rig near Thousand Islands
Private campgrounds and RV parks outside the park, plus overnight stops for members.
Partner link · RoverPass
RV parks near Thousand Islands on RoverPass
Book RV parks and campgrounds online with full hookups near the park.
Check on RoverPass
Partner link · Campspot
Campsites near Thousand Islands on Campspot
Private campgrounds, cabins and glamping just outside the park, often with availability when park sites sell out.
Check on CampspotTraveling by RV near Thousand Islands?
Stay overnight free at wineries, farms & breweries
Harvest Hosts membership: 5,000+ unique RV stops. Minialife readers get 20% off the first year.
Partner link · Harvest Hosts
Rent a motorhome or campervan
Fleet rentals from established depots. Compare pick-up cities against your flight.
Partner link · Motorhome Republic
Class C Motorhome — Sleeps 4
Wake up wherever the view is best — no check-in desk, no curfew.
Check on Motorhome Republic
Partner link · Motorhome Republic
Sprinter Adventure Van
Small enough to park at the trailhead, comfy enough to sleep in.
Check on Motorhome RepublicQuick answers
Can I take an RV to Thousand Islands?
Yes, Thousand Islands is a good fit for camping trips. Check vehicle length limits on park roads and campgrounds before you book, and plan fuel stops on remote stretches.
Where do I pick up an RV for Thousand Islands?
The nearest airport is Watertown International Airport (ART), about 45 min away by car. Rental depots are usually in larger cities, so compare pick-up points before booking flights.
Do campgrounds near Thousand Islands need reservations?
Access to Heart Island and Dark Island is restricted to operating seasons, typically mid-May through October. While no park entry permit is required, boat tour tickets and castle admission are separate costs and often sell out during summer weekends. State park camping at Wellesley Island can book out nine months in advance, requiring an official New York State Parks check.