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
Tue
5AM - 9AM
12 May 2026
Light and variable.
Increasing from −2 to 7°C
Calm sea
UV Index: 0 - Low
Sunny
Tue
9AM - 1PM
12 May 2026
- SW 3 knots increasing to NW 6 knots.
- Increasing from 7 to 10°C
- Calm sea
- UV Index: 6 - High
- Sunny
Tue
1PM - 5PM
12 May 2026
- W 4–7 knots backing SW 4-7 knots.
- 9 to 12°C
- Calm sea
- UV Index: 6 - High
- Mostly fine