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
Sat
9AM - 1PM
04 April 2026
NE 4 knots increasing to 6 knots.
Increasing from 6 to 11°C
Calm sea
Cloudy
Sat
1PM - 5PM
04 April 2026
- NE 2–6 knots.
- 8 to 14°C
- Calm sea
UV Index: 1 - Low- Cloudy
Sat
5PM - 9PM
04 April 2026
- SE 4 knots increasing to 16 knots. Gusts up to 31 knots.
- 10 to 14°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers