Kingston Harbour is a freshwater wreck-diving destination with a strong concentration of sunken vessels spread across a wide depth range, from very shallow to well beyond recreational limits. Intermediate divers will find the most options, including the Cornwall artificial reef and the City of Sheboygan, while advanced divers can push deeper on the Munson Wreck. Carp, Perch, and Pike are the most frequently observed species, giving every dive a lively freshwater character.















Monthly water temperature across Kingston Harbour's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature drops close to freezing through winter and early spring, making a drysuit essential for much of the year. Conditions warm substantially from June through September, when most divers visit and visibility tends to be at its best. Spring and autumn shoulder months remain diveable for those equipped for cold water.
15 operators
10 more sites to explore
Water temperature around Kingston Harbour ranges from about 2°C in February to 23°C in August, based on satellite sea-temperature data for its dive sites.
In the warm season (about 23°C) a 3mm full suit is comfortable in Kingston Harbour; in the coldest months (about 2°C) step up to a drysuit.
Fin maps 15 sites in Kingston Harbour (15 scuba diving sites).
Across Kingston Harbour's dive sites, June, July, August and September are most often reported as the best months to visit.
The most frequently observed species are Carp, Perch, and Pike, all confirmed by diver sightings across the sites. Big Water Crayfish, Rainbow Trout, Freshwater Drum, and Snail have also been recorded on dives here. The freshwater environment gives the wildlife a distinctly different character from coastal saltwater diving.
Most sites are rated for intermediate divers, including well-known wrecks like the George T Davie, City of Sheboygan, and Cornwall. The Munson Wreck is the exception, sitting at depth and listed as advanced only. Complete beginners have at least one shallow option in the Aloha-Effie Mai site.
All listed sites in Kingston Harbour require boat access. Several local operators offer charter services, including Pat's Dive Charters, Ducks Dive Charters and Cottages, and Go With The Flow Diving, so arranging a boat is straightforward.
The harbour is dominated by wreck dives, with several sites also classed as artificial reefs, such as the Cornwall and the Munson Wreck. Depths vary considerably across the sites, giving divers at different experience levels something appropriate to aim for. There are no natural reef or wall dives listed in the area.