Lock 21 Dive Site is a dive site in Ontario, Canada. Check the latest conditions and entry details before you go.
Tap a factor for its source and model point
Dive windows this week
No dive windows in this week’s forecast — no stretch of daylight hours scored favorable or moderate for this site.
First light 10:04 · Sunrise 10:33 · Sunset 23:18
Source: Open-Meteo marine · graded 3h ago
Forecast only — always assess conditions on site.
Dated firsthand observations from divers — not current conditions.
No diver reports for this site yet. — one dated observation helps every diver after you.
No seasonal history for this site yet — historical marine data is still being aggregated.
No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.
No dive shops mapped within 25 km. Know one? Add it to the map.
Data updated July 2026
Lock 21 Dive Site is a dive site located in Canada.
No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.
No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.
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