See the Thousand Islands from above and below on a 2.5–3 hour glass-bottom cruise to Rock Island Lighthouse. Naturalists narrate wildlife and shipwreck stories, and visitors can climb the lighthouse and tour the keeper’s cottage museum.
More ways to explore the area's outdoor wonders
A low sun slants across the St. Lawrence and the glass-bottom Night Heron slips through scattered islands, the river’s current nudging the hull as gulls quarrel above. From the viewing bench you can watch shoals and submerged wreck timbers pass beneath the glass plate—cold, clear water revealing the unseen world that shapes the Thousand Islands.
Difficulty
easy
Duration
2–3 hours
Fitness Level
Suitable for most fitness levels—requires short walks and climbing a narrow lighthouse staircase.
Wildlife
History
Rock Island Lighthouse and keeper’s cottage date to the late 19th century and reflect the era when local lights were essential to guiding steamers and barges through shoals.
Conservation
The Thousand Islands are sensitive freshwater habitats—stick to marked paths, avoid feeding wildlife, and pack out any trash to minimize impact.
Reserve your spot on the St Lawrence River - Rock Island Lighthouse on a Glass Bottom Boat Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Arrive early for best boarding spots
Get to the blue ticket booth 30 minutes before departure to choose a forward viewing seat and secure your boarding pass.
Bring binoculars and a camera
Binoculars improve bird and shoreline viewing; use a polarizing filter or angle your camera to reduce glass glare.
Dress in layers and windproof outerwear
Open decks are exposed to river winds—an extra layer keeps you comfortable during cooler mornings and evenings.
Mind the lighthouse stairs
The climb to the lantern room involves narrow, sometimes steep steps—take your time and use handrails.
Binoculars
Bring for bird and shoreline viewing from deck and on Rock Island.
Windproof jacket
Protects against cold gusts off the river in spring and early summer.
spring
Camera with polarizing filter
Reduces glare on the glass-bottom viewing area and improves underwater shots.
summer
Sturdy walking shoes
Helpful for uneven island trails and the lighthouse stairs.
fall