Where does the Great Lakes Seaway Trail go?

From the Pennsylvania-Ohio border along Lake Erie, north along the Lake Ontario shore through Niagara, Rochester, Oswego, and the 1000 Islands region, then east along the St Lawrence River to the Canadian border at Massena, New York. 518 miles total. Multiple state-park campgrounds along the route. Easy multi-day RV trip.

Multiple NY + PA state parks along the route accept RV reservations.

Yes — public highways. Some state-park entrances have day-use fees.

Where does the Great Lakes Seaway Trail go?

From the Pennsylvania-Ohio border along Lake Erie, north along the Lake Ontario shore through Niagara, Rochester, Oswego, and the 1000 Islands region, then east along the St Lawrence River to the Canadian border at Massena, New York. 518 miles total. Multiple state-park campgrounds along the route. Easy multi-day RV trip. • 518 miles PA-NY • National Scenic Byway • RV-friendly throughout • Niagara Falls + 1000 Islands access • Multiple state-park campgrounds

Scenic bywayCited official sources

Great Lakes Seaway Trail — Lake Erie to St Lawrence River

518 miles. National Scenic Byway. Lake Erie + Lake Ontario + St Lawrence River. The longest waterfront RV scenic in the US.

The Great Lakes Seaway Trail is a 518-mile scenic byway running along the southern shore of Lake Ontario, Lake Erie, and the St Lawrence River through New York and Pennsylvania. National Scenic Byway designation. RV-friendly throughout. The route accesses Niagara Falls State Park, Sackets Harbor, the 1000 Islands region, and multiple state parks. Plan a week minimum.

Frame: a highway in New York — not this route.

Browse RV rentals All scenic byway routes

By PickRV·Cited primary sources·Updated May 18, 2026

Elevation

1,000ft

highest point · climbs from 200 ft

05k10k14.5k

Elevation range — drawn from this page's surveyed low and high points

At a glance

Route facts worth checking before you roll out

Conservative, source-minded numbers for planning — always confirm against current conditions and state DOT 511 before you depart.

Distance

518 mi

PA-OH border to NY-Canada border

Drive time

13–22 hr

5-7 days savoured

Elevation

200–1,000 ft

RV compatibility

RV-friendly

Best season

May through October. Peak fall color late September-October.

Cell coverage. Good throughout.

Elevation profile

Generally near lake level.

Vehicle restrictions

No posted RV restrictions
Border-crossing rules at NY-Canada terminus

Marquee stops

Niagara Falls State Park: oldest US state park (1885). Multiple RV-friendly campgrounds in the area.

Rochester area: Lake Ontario shore parks.

Sackets Harbor + Oswego: War of 1812 history.

1000 Islands: Wellesley Island State Park, Boldt Castle.

St Lawrence River shore: international scenic.

New York State 511state-dot
PennDOT 511PAstate-dot
America's Byways — Federal Highway Administration scenic byway programbyways

What I Love NY + Visit PA doesn't tell you

Both state tourism boards cover their segments separately. The integrated multi-state Seaway Trail is the RV-traveler view.

Niagara Falls is the marquee tourist site but Wellesley Island State Park in the 1000 Islands and Stony Brook State Park near Dansville are quieter alternatives with similar RV camping quality.

NY State Parks: Reserve at Seaway Trail parks.[source]
Visit PA: Pennsylvania trail segment.[source]

Frequently asked questions

Where do I camp?: Multiple NY + PA state parks along the route accept RV reservations.
Is it free to drive?: Yes — public highways. Some state-park entrances have day-use fees.

Authoritative sources

New York State 511 State DOT
PennDOT 511PA State DOT
America's Byways — Federal Highway Administration scenic byway program FHWA National Scenic Byways

Verify current conditions with state DOT 511 systems before departure. RV restrictions may change. Weather may close roads.

Planning an RV trip along Great Lakes Seaway Trail?

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Rent an RV in the 2 states Great Lakes Seaway Trail crosses

This drive spans more than one state. Pick up where the road starts, or wherever the trip suits you.

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