There’s a reason visitors keep coming back to the Thousand Islands year after year — and a big part of it is the view from the water. You can drive across the 1000 Islands Bridge, peer down, and think “wow, that’s beautiful.” But until you’re actually out on the St. Lawrence River, weaving between islands, spotting castle turrets rising above the treeline and massive freighters gliding through the shipping channel, you haven’t really seen it.
The good news? Getting out on the water has never been easier. Whether you want a quick one-hour spin around the islands or a multi-day river cruise, there’s a tour for you — on both sides of the border.
Why a Boat Tour?
Roughly 1,864 islands dot this stretch of the St. Lawrence River, and the vast majority are only accessible by water. Some have nothing on them but a few trees. Others are home to extraordinary private estates, cozy family cottages, and yes — actual castles. There’s even a bridge connecting two islands that spans just a few feet of water, holding the Guinness World Record as the shortest international bridge in the world.
No road trip is going to show you any of that. A boat tour will.
Types of Tours to Choose From
Classic Narrated Sightseeing Cruises These are the most popular option, and for good reason. Hop on a comfortable tour boat, find a spot on the deck, and let a knowledgeable guide do the work. You’ll cruise past Boldt Castle, Singer Castle, Millionaire’s Row, and dozens of private island estates while getting the history and legends behind them. Tours typically run 1.5 to 3 hours and are great for all ages. Most operators offer multiple daily departures throughout the summer season.
Dinner & Lunch Cruises Want to take the experience up a notch? Several operators offer dining cruises where you can enjoy a meal while the scenery floats by. Sunset dinner cruises in particular are hard to beat — picture golden light over the river, a warm breeze off the water, and a castle silhouette on the horizon. It’s the kind of evening you’ll be talking about for years.
Private Charters Celebrating a birthday, anniversary, or just want the boat to yourselves? Private charters are available from several companies and can be customized to fit your group. Perfect for proposals, family reunions, or corporate outings.
Small Boat & Specialty Tours For a more intimate experience, smaller operators offer unique tours in smaller vessels that can explore narrow channels and tucked-away spots that larger boats can’t reach. Some combine boating with hiking, scuba diving, or wildlife watching for a truly one-of-a-kind day.
Multi-Day River Cruises If you really want to soak it all in, multi-day cruises on the St. Lawrence are available, with some itineraries running 4 to 7 nights and stopping at ports like Kingston, Gananoque, Brockville, and beyond. Think of it as a floating hotel with some of the best scenery in North America right outside your window.
Launching from Both Sides of the Border
One of the great things about the 1000 Islands is that you can jump on a tour from the US or Canadian side — each offers a slightly different perspective on the river.
On the American side, Alexandria Bay is the hub, home to the iconic Uncle Sam Boat Tours, which has been running cruises since 1926. They’re the only tour company offering unlimited access to Boldt Castle and Heart Island as part of their tours.
On the Canadian side, you’ve got options in Gananoque, Rockport, Kingston, and Brockville — all with their own distinct character. City Cruises Gananoque is one of the oldest and largest operators in the region, with more than 70 years of river experience. Rockport Cruises, operating for over 70 years out of the charming village of Rockport, Ontario, features Boldt Castle on every single tour.
No matter which side you start from, the river is the star of the show.
A Few Tips Before You Board
- Book ahead in summer. Popular tours fill up fast, especially on weekends in July and August.
- Bring a layer. It can get breezy out on the water even on warm days.
- Don’t forget your passport. Some tours cross the US-Canada border, so you’ll want proper ID.
- Bring a camera. Seriously — you’re going to want one.
Ready to Get on the Water?
Whether it’s your first visit to the 1000 Islands or your twentieth, a boat tour never gets old. The river has a way of making everything feel a little more magical — and that’s something you really do have to experience for yourself.
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