Island Hopping Tour
Route Overview
About this Tour
The Thousand Islands are indeed 1,864 islands scattered across the St. Lawrence River, straddling the border between Canada and the USA. From tiny rocky shoals to islands hosting massive castles – the diversity is incredible. Boldt Castle on Heart Island is the undisputed highlight: a six-story castle built as a grand gesture of love by a millionaire. Did you know Thousand Island Dressing was actually invented here? The landscape is equally captivating: granite islands topped with windswept pines, turquoise waters, and sunsets that look like they were painted by a master. Hard Facts: Boating license recommended • USA/Canada border crossing required • 3-7 days ideal • No locks • Best time: June-September
Journey Stages
1Day 1: Gananoque
From island to island in the St. Lawrence River
The engine of your houseboat vibrates gently under your feet, a deep, soothing hum that marks the beginning of a great adventure. You stand at the helm, hand loose on the throttle, looking out over the glittering waters of the St. Lawrence River. It is late afternoon here in Gananoque, the self-proclaimed gateway to the Thousand Islands, and the low Canadian sun bathes the world in a warm, almost surreal gold. The air smells different than at the coast—not of salt and tides, but spicy with freshwater, sun-warmed granite rocks, and the resinous scent of Eastern White Pines clinging boldly to tiny islands. Your first leg is intentionally short, a gentle introduction to your floating home before the longer distances follow. After taking over the boat at the Gananoque Municipal Marina, your first stop is naturally for provisions. The Metro supermarket on King Street is just a short walk or a quick taxi ride away and offers everything you need for the galley. An indispensable tip right at the start: be sure to pack a few cans of Naughty Otter Lager. This beer from the local Gananoque Brewing Company tastes best on board when the evening sun warms the deck and is almost a local tradition. Once the lines are cast off and you leave the sheltered marina, you feel the vastness of this body of water. This is no narrow canal; this is a mighty river that unfolds its full power here, just after Lake Ontario. You steer the boat slowly toward the Admiralty Islands, a group of islands just a few kilometers from the harbor wall. Navigating here on the first day is pure joy and concentration at once. The channels are deep and well-marked, but keeping an eye on the chart plotter is essential, as the hard granite shoals forgive no mistakes. But don't worry, the water is often so clear that you can see the rocky bottom shimmering several meters down. It is this unique blend of wilderness and civilization that immediately captivates you. On some islands, there is only a single tree and a tiny wooden hut; on others, Victorian summer residences sit enthroned with sprawling verandas where the Canadian flag snaps in the wind. For your first afternoon, it is recommended to circumnavigate Aubrey and Mermaid Islands. Shift the engine into neutral, let the boat drift, and listen. If you are lucky, you will already hear the mournful, mystical call of a Common Loon, a sound that represents the Canadian wilderness like no other. In the evening, you return to the port of Gananoque. Mooring fees here are fair at about two Canadian dollars per foot of boat length, and the service, including electricity and water, is excellent. Once the boat is securely moored, you head into town. A short walk takes you past Joel Stone Heritage Park, where cannons from the War of 1812 stand silent watch over the river. For dinner, you are spoiled for choice, but to celebrate the first day properly, you should reserve a table at Riva Italian Restaurant. It is located in a beautifully restored building and offers a garden that reaches almost to the water. Although the name sounds Italian, this is the place to try the local fish. Order the Walleye. The meat is white, firm, and has a nutty sweetness that pairs perfectly with the wild rice often served with it. Accompany it with a glass of chilled Chardonnay from nearby Prince Edward County, an up-and-coming wine region whose vintages possess an astonishing mineral freshness. Before you retire to your cabin, here is my personal secret tip for the end of this first day: don't go back on board immediately. Instead, walk along Water Street once more to the end of the pier near the Arthur Child Heritage Museum. Most tourists have disappeared by now. If you sit on the wooden planks there, you have the perfect view of the dark silhouettes of the islands in the moonlight. The water laps quietly against the pilings, and in the distance, you see the lights of the large freighters passing silently through the main shipping channel. In this moment, as the cool night air dispels the heat of the day, you finally feel it: you have arrived in one of the most beautiful water landscapes in the world.
2Day 2: Heart Island & Boldt Castle
Millionaire villas and enchanted islets
In the early morning, the mist still lies like a heavy white blanket over the St. Lawrence River as you step to the railing with a cup of steaming coffee. The air is cool and tastes of freshwater and the resinous needles of the windswept pines clinging to the shores of the countless granite islands. It is that special silence of the Thousand Islands, interrupted only by the occasional call of a loon before the day truly begins. Today’s program is a journey back to the Gilded Age, a time when industrial magnates and hoteliers discovered this archipelago as their private playground. Your destination is the architectural centerpiece of the region: Heart Island and the incomparable Boldt Castle. After casting off and feeling the diesel engine vibrate gently beneath you, you steer your houseboat toward the US border. An important practical note: since Heart Island is on American territory, you must have your passport ready. The approach requires concentration, not because of the current—which is noticeable but manageable—but because of the busy traffic around Alexandria Bay. You head directly for the official Customs Dock on Heart Island. It is a grand feeling as the massive towers of the castle slowly emerge from the haze against the deep blue sky. It looks almost surreal, like a Rhineland fortress that a giant accidentally dropped in North America. Once you have moored and completed the entry formalities—which usually go quickly thanks to modern terminals—you step onto the grounds of one of the most tragic love stories of the 20th century. George Boldt, the proprietor of the famous Waldorf Astoria Hotel in New York, had this palace built for his wife Louise. It was intended to be the ultimate token of his affection. But when Louise died suddenly in 1904, Boldt immediately telegraphed the construction site: Stop all work. He never set foot on the island again. As you wander through the massive halls, you feel this fracture. Restored grandeur with marble floors and chandeliers alternates with areas that still breathe the raw charm of the unfinished. The ballroom and the impressive glass dome in the staircase capture the light in a way that feels almost melancholic. Don't forget to visit the Power House and the Alster Tower, which looks like something out of a fairytale with its slanted walls and unusual shapes. Around noon, when the sun reaches its zenith and the water glitters in an almost Caribbean turquoise, you return on board. It is the perfect moment for a light lunch on the upper deck. Perhaps you picked up fresh ingredients in Gananoque to honor the local classic: a salad with genuine Thousand Island Dressing. People still argue whether the recipe was truly invented on George Boldt's yacht or by a fishing guide's wife in Clayton, but here, overlooking the Yacht House on the opposite shore, it simply tastes authentic. The afternoon is dedicated to relaxed cruising. You leave the busy waters around Heart Island and head downstream through what is known as Millionaire's Row. Here, one summer residence follows another—some as large as palaces, others barely larger than a garden shed, perched precariously on their tiny rocky outcrops. Keep an eye out for Zavikon Island. You will see a small bridge connecting two islets—a larger one with the main house and a tiny one with the garden. For a long time, the rumor persisted that this was the shortest international bridge in the world between Canada and the USA, and although modern maps show both islands belong to Canada, it remains a wonderful photo opportunity. Now for the promised secret tip for the late afternoon if you want to escape the bustle of the tour boats: instead of staying in the main channel, navigate carefully toward the Lake Fleet Group. Most tourists pass them by, but south of Camelot Island, you will find a passage leading to one of the most beautiful and quiet anchorages in the region: the bay at Thwartway Island, also known as Leek Island. The island is uninhabited and part of the National Park. The water here is often so clear that you can see the sandy bottom at a depth of three meters. It is the ideal place to drop anchor, turn off the engine, and simply jump into the cool water. As the sun slowly sinks behind the granite rocks, bathing the sky in shades of violet and orange, the true magic of the Thousand Islands emerges. The air now smells intensely of water and the smoke from campfires being lit on the surrounding islands. There are no streetlights to disturb the starlight, only the gentle lapping of waves against the hull of your houseboat. This is the moment to open a bottle of wine from nearby Prince Edward County and reflect on the day—from the opulence of millionaires to the absolute silence of nature.
3Day 3: Border Experience
Where Canada and the USA meet on the water
Morning on the St. Lawrence River begins not with the shrill sound of an alarm clock, but with the gentle gurgling of water against the side of your houseboat. When you step out on deck today, that special silvery mist typical of late summer in Ontario still hangs over the water. The air is fresh, almost crisp, and smells intensely of pine needles and cold river water. This is the day geography becomes a playground. You are in the heart of the Thousand Islands, exactly where the invisible border between Canada and the USA meanders through the crystal-clear water. Your goal today is the return to the historic Limestone City of Kingston, but the journey there is the real experience. After starting the engine and letting the deep hum break the silence, you first head toward the most photographed curiosity of this archipelago. Take your time casting off; the coffee in your hand tastes better out here than in any café anyway. Your course leads you near Rockport. Here, you must navigate attentively. The depth sounder is your best friend, as the channels are deep, but the massive granite rocks that make this region so dramatic often lurk just a few meters from the ideal line. Pay close attention to the buoyage: since you are heading upstream toward Kingston, the rule is Red Right Returning. So, keep the red buoys on your starboard side. Soon it appears before you: Zavikon Island. It is an almost surreal sight. A larger island, built with a charming white cottage, is connected via a tiny footbridge to an even smaller rocky islet. The legend told by every skipper here is that this is the shortest international bridge in the world. The left side supposedly belongs to Canada, the right to the USA. Even if geographers now note with a wink that technically both islands are on Canadian soil, it doesn't change the magic of the place. The flags of both nations flutter peacefully side by side in the wind, barely five meters apart. It is the perfect symbol for this region, where borders are fluid and neighbors often live in different countries but share the same river. For your lunch break, don't just drop anchor anywhere; head for Mulcaster Island. It belongs to the Thousand Islands National Park and offers excellent mooring spots. The docking fee is modest and can often be paid via self-registration. Here, you feel the wild character of Canada. A short path leads you through dense forest to a clearing. Pack a picnic. There is nothing better than sitting on the warm granite rock, eating a local sandwich, and watching the sailboats glide by while the sunlight glitters on the waves like a thousand diamonds. In the afternoon, the route becomes more demanding navigationally but also more scenic as you cross the Admiralty Group. Here, the islands lie close together like a scattered pearl necklace. And here is my personal secret tip for you, which you often won't find in standard brochures: look for Half Moon Bay on the southeast side of Bostwick Island. It is a natural bay so deep and sheltered that it acts like an amphitheater. For over a hundred years, boaters have gathered here in the summer for open-air church services. Even if you are there all alone, this place has an almost sacred silence. Lower the RPMs, let the boat drift, and enjoy the absolute peace for ten minutes, surrounded by steep rock walls and ancient trees. Toward late afternoon, the scenery changes dramatically. Wild nature gives way to civilization. On the horizon, the domes and towers of Kingston appear. Approaching the Confederation Basin is an experience in itself. You pass the historic Shoal Tower, a defensive Martello tower standing like a stone sentinel in the water. The radio channel for the marina is VHF 68; call in early, and the staff, who are exceptionally helpful, will assign you a spot right against the magnificent backdrop of City Hall. After securing the houseboat and connecting the shore power, you should end the evening in the city. Kingston is known for its density of restaurants. Avoid the typical tourist traps directly on the water and instead walk a few minutes into Ontario Street. Be sure to reserve a table at Wooden Heads Gourmet Pizza. It sounds simple, but it is an institution. The scent of wood fire and fresh herbs hits you as soon as you enter. Order the Nonna Mela pizza with caramelized onions and apples—a flavor explosion that pairs perfectly with a local craft beer from the Kingston Brewing Company. When you later stroll back to the harbor over the cobblestones, full and satisfied, with the city lights reflecting in the dark water of the harbor basin, you will understand why this leg is the perfect mix of wild border romance and urban flair.
Practical Tips
- ✓Border Traffic: Between the USA and Canada – remember to bring your passport!
- ✓Boldt Castle: 8 USD entry fee, crowded in summer – go early in the morning.
- ✓Muskellunge Fishing: The Thousand Islands are world-famous for this sport.
At a Glance
Duration
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Distance
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Locks
3
Difficulty
Moderate
Highlights
- Boldt Castle – A fairytale castle on Heart Island: 6 floors, built in 1900 as a token of love, now a museum
- Smallest International Bridge – The shortest international bridge in the world: Connecting a Canadian and a US island over just 10 meters
- Rock Island Lighthouse – Historic lighthouse on a rocky island: Offering panoramic views over the St. Lawrence River