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
9AM - 1PM
04 April 2026
- SE 7–18 knots. Gusts up to 29 knots.
- Increasing from 2 to 5°C
- E 0.7m at 4s period
- Chance of showers
Sat
1PM - 5PM
04 April 2026
- S 15 knots decreasing to 11 knots. Gusts up to 28 knots.
- Increasing from 5 to 9°C
- E 0.6m at 4s period
- UV Index: 0 - Low
- Rain
Sat
5PM - 9PM
04 April 2026
- S 10 knots increasing to W 18 knots. Gusts up to 30 knots.
- 6 to 10°C
- 0.5m
- UV Index: 0 - Low
- Rain