About Grindstone City Marina
25 Docks available for rent. Check with office for availability. WE CANNOT ACCOMMODATE TRANSIENT BOATS OVER 25′ IN LENGTH.

Facilities
COORDINATES
44.05547 N, -82.89511 E
Port Information
Telephone
Berth Sizes
< 10m
Depth at MLW
2 - 3m
Manoeuvrability
Good
Channel Marking
Fair
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Fixed
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Tue
5AM - 9AM
17 February 2026
- N 6 knots decreasing to 4 knots.
- 0°C
- Calm sea
- UV Index: 0 - Low
- Partly cloudy
Tue
9AM - 1PM
17 February 2026
- S 3–5 knots backing E 3-5 knots.
- −1 to 2°C
- Calm sea
- UV Index: 1 - Low
- Cloudy
Tue
1PM - 5PM
17 February 2026
- E 5 knots increasing to 7 knots.
- 1°C
- Calm sea
- UV Index: 1 - Low
- Partly cloudy