About Thousand Islands Club- Horizon Marina
Our premier yacht club, the Thousand Island Club on Wellesley Island, has 135 seasonal/transient deep water slips, complete with dock boxes, dock carts, state-of-the-art shore power pedestals with dockside water, wi-fi, cable TV, lighted docks and grounds, in a peaceful pristine setting. With 20 plush individual bathrooms, exercise room, tennis, volleyball and basketball courts, pool, restaurant, playground, gazebo’s, hammocks, dog walks and much more, you’ll know you’ve found your ultimate boating destination in the Thousand Islands Club!

Facilities
COORDINATES
44.33955 N, -75.93493 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
3m+
Manoeuvrability
Good
Channel Marking
Fair
Overseas Visitor Berths
Yes
Catamaran Berths
Yes
Dock Type
Floating
Style Side To
Yes
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Wed
5AM - 9AM
18 February 2026
- NE 4 knots.
- −2 to 0°C
- Cloudy
Wed
9AM - 1PM
18 February 2026
- NE 5 knots increasing to 7 knots.
- −2 to 1°C
- UV Index: 1 - Low
- Cloudy
Wed
1PM - 5PM
18 February 2026
- NE 5–10 knots. Gusts up to 19 knots.
- −4 to −1°C
- UV Index: 0 - Low
- Cloudy