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
Sat
5AM - 9AM
30 May 2026
- NE 10–14 knots. Gusts up to 23 knots.
- 7°C
- NE 0.9m at 4s period
- UV Index: 0 - Low
- Sunny
Sat
9AM - 1PM
30 May 2026
- NE 10–12 knots. Gusts up to 17 knots.
- 8 to 10°C
- NE 0.7m at 4s period
- UV Index: 7 - High
- Sunny
Sat
1PM - 5PM
30 May 2026
- N 10–12 knots.
- 10 to 12°C
- NE 0.5m at 3s period
- UV Index: 7 - High
- Sunny