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
Mon
9AM - 1PM
20 July 2026
- SW 6–11 knots.
- Increasing from 23 to 26°C
- SW 0.4m at 2s period
- Mostly fine
Mon
1PM - 5PM
20 July 2026
- W 6–11 knots backing S 6-11 knots.
- 24 to 26°C
- SW 0.4m at 2s period
- UV Index: 6 - High
- Cloudy
Mon
5PM - 9PM
20 July 2026
- S 7–13 knots. Gusts up to 19 knots.
- 24 to 28°C
- SW 0.4m at 3s period
- UV Index: 0 - Low
- Partly cloudy