About Lake Ontario Mariners Marina
We are a full service marina located in beautiful Henderson Harbor on the banks of Lake Ontario. Situated at the end of the Harbor we offer deep, protected dockage, with easy access to the renowned fishing of Lake Ontario.
Facilities
Electricity
Water
Showers
Toilets
Boatbuilder
HauloutCOORDINATES
43.85048 N, -76.21079 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
3m+
Manoeuvrability
Fair
Channel Marking
Fair
Overseas Visitor Berths
Yes
Dock Type
Fixed
Style Side To
Yes
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Fri
5AM - 9AM
06 February 2026
S 4–6 knots.
−8°C
Partly cloudy
Fri
9AM - 1PM
06 February 2026
- S 4–8 knots. Gusts up to 17 knots.
- Increasing from −8 to −4°C
S 0.4m at 2s period
UV Index: 1 - Low- Cloudy
Fri
1PM - 5PM
06 February 2026
- S 3–8 knots.
- −4°C
- Calm sea
- UV Index: 0 - Low
- Cloudy