Charter operator page with Thousand Islands boat-base and visibility context.
United States of America · Brockville and the Thousand Islands
Deep freshwater wreck with current, traffic and artifacts.
Deep freshwater wreck with current, traffic and artifacts.
Boat access, current and traffic make a local charter the practical choice.
Kinghorn (Wreck) is a deep freshwater wreck in the St. Lawrence River with an intact hull profile, open holds and a route that rewards steady buoyancy more than stopping in one place. It is best approached as a boat dive with guide support, because current, boat traffic and silty interior spaces make the site more demanding than it looks from the surface, and the strongest value comes from a controlled pass over the wreck rather than a casual swim-by.
Site Conditions
Safety Notes
This is a deep dive in strong current and should not be attempted from shore; plan for boat support.
Access Restrictions
Boat access only; shore swimming is not practical and vessel traffic makes casual surface approaches unsafe.
Legal Notes
Follow local navigation, marina and border-area procedures when approaching by boat.
Community notes to help plan your visit.
Scuba Diving
Deep wreck scuba dive with strong current; appropriate experience is needed.
Freediving
Not a freedive-first site; the depth and current suit scuba.
Snorkeling
Not a practical snorkel site because the wreck sits deep and is reached by boat.
Species commonly reported at this site, with direct links into their wildlife guides.
Research estimate
Research estimate
Research estimate
Research estimate
Research estimate
Research estimate
Last Updated
Research Sources
Charter operator page with Thousand Islands boat-base and visibility context.
Operator page with depth, current and charter-dive context.
Regional tourism page with shipwreck-diving and marine-life context.
Official county tourism page with regional clarity context.
Guide page with shore-distance, traffic and interior-silt cautions.

Bonnie Castle: shore-access river training dive park

Lise Cottage is a private freshwater dive site with clear water.

Historic Islander (Wreck) with easy shore access.