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
Thu
5AM - 9AM
09 April 2026
- S 14–19 knots. Gusts up to 34 knots.
- 7°C
- S 0.8m at 4s period
- UV Index: 0 - Low
- Chance of showers
Thu
9AM - 1PM
09 April 2026
- SW 16–19 knots. Gusts up to 30 knots.
- 7 to 10°C
- SW 0.6-0.9m at 3s period
- UV Index: 0 - Low
- Chance of showers
Thu
1PM - 5PM
09 April 2026
- W 19 knots decreasing to 13 knots. Gusts up to 29 knots.
- 7 to 10°C
- W 0.5m at 3s period
- UV Index: 5 - Moderate
- Partly cloudy