River Sightseeing Tour — A 1000 Islands Cruise Past Boldt Castle and Rock Island Lighthouse

ALEXANDRIA BAY BOAT TOUR FIELD GUIDE

River Sightseeing Tour — A 1000 Islands Cruise Past Boldt Castle and Rock Island Lighthouse

A 3–4 hour sightseeing cruise that glides the St. Lawrence Seaway and the patchwork of islands around Alexandria Bay, useful for planning what you’ll see and where to meet.

River Sightseeing Tour — A 1000 Islands Cruise Past Boldt Castle and Rock Island Lighthouse.

Duration
3-4 Hours
Location
Alexandria Bay
Operator
Adonsa Tours
Category
Boat Tour
Robert Eric Crews
Founder & Editor, The Adventure Collective
Published Verified

Experience the enchanting 1000 Islands region on a captivating cruise, where history and natural beauty intertwine. Glide past charming islands, explore the iconic Rock Island Lighthouse, and marvel at the grandeur of Boldt Castle and Millionaires Row, all while navigating the stunning St. Lawrence Seaway.

Highlights

Outing Highlights

THE WATERWAY

St. Lawrence Seaway Shipping Channel

Pass through the St. Lawrence Seaway shipping channel, the broad artery that threads the 1000 Islands and frames much of the tour’s route.

THE LIGHTHOUSE

Rock Island Lighthouse

Glide past Rock Island to view the Rock Island Lighthouse, one of the region’s iconic maritime landmarks.

THE ARCHITECTURE

Boldt Castle and Millionaires Row

See Boldt Castle and its Yacht House and cruise by the storied estates of Millionaires Row, vivid reminders of the area’s Gilded Age legacy.

What the day feels like

What the Cruise Feels Like

The tour navigates the patchwork of islands and waterways that define the 1000 Islands: passengers glide past numerous islands, travel under the American spans of the 1000 Island Bridge System, and pass signature sights such as the Rock Island Lighthouse, Boldt Castle and its Yacht House, and the homes along Millionaires Row while traversing the St. Lawrence Seaway.

Suitability

Who it's for

Who this cruise suits

1
FamiliesA family-friendly cruise — the trip is described as for all ages and lasts 3–4 hours.
2
Older TravelersSuitable for older travelers: the tour is open to all ages and operates as a 3–4 hour sightseeing cruise.
3
First-Time VisitorsA good introduction to the 1000 Islands, appropriate for visitors of any age given the cruise’s all-ages designation and 3–4 hour duration.
4
Mixed-Age GroupsDesigned to accommodate mixed-age groups — the tour is listed as suitable for all ages and runs 3–4 hours.

Practical planner

Details to review before reserving

What to Bring

No specific gear requirements are listed in the provided trip data.

Booking Notice

Review cancellation policies before reserving.

Frequently asked questions

Planning Your Outing

How long is the River Sightseeing Tour?

The tour runs approximately 3–4 hours.

Where is the meeting location for departures?

Meeting Address: Keewaydin State Park Marina, 45165 NYS Route 12, Alexandria Bay, NY 13607.

What notable sights does the cruise pass?

Highlights include the St. Lawrence Seaway shipping channel, Rock Island Lighthouse, Boldt Castle and its Yacht House, travel under the American spans of the 1000 Island Bridge System, and Millionaires Row.

Who operates the River Sightseeing Tour?

The tour is operated by Adonsa Tours.

Is the tour suitable for children?

Yes—the tour is described as for all ages.