Soft grey light all day today, with a soft SW wind and pressure going nowhere. The water to cover at Grindstone Lake is sheltered bays and points. If you must go, go in the night. One good spot fished well beats five fished quickly. Cooling water has fish active and on the move.
The bites are poor now
Night
Set in District Municipality of Muskoka, Grindstone Lake is an Ontario water. It sits in rolling bush country. At about 32 hectares, a day is enough to walk the shoreline properly. A shoreline of some 4.0 km keeps the choices simple. Huntsville lies 31 km from the water. The big place round here is Barrie, 108 km distant. No boundary runs near, so the local rules hold throughout.
We hold no survey for this water; read the slope of the shoreline instead. Where the bottom changes texture, fish gather; find that line. Weed, then depth: that is the order to fish a water of this kind. County-wide records name pumpkinseed, smallmouth bass, northern pike and yellow perch. Those are county-wide records, so not every one of them will be in this water. The shape of Grindstone Lake decides where the fish sit.
Temperature averages peak at 18°C in July and bottom out at -11°C in January. Winter closes the water for a while, and the reopening is worth catching. Winter fishing happens on the ice here, with open water back around mid April. Going by climate averages, expect open water from about mid April until roughly early December. May into June fishes hardest, and September gives a second good stretch before the lid returns. Anyone fishing Grindstone Lake regularly works to that calendar.
The access position is unclear from public sources. Records list it as a natural water body rather than an impoundment. Nothing formal is recorded here: no ramp, no car park, no marked path. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. Provincial rules still apply whatever the bank status. Signs go up and come down, so check on the day. Failing this one, try Wren Lake, 1.5 km away. Check the position at Grindstone Lake before loading the car.
31%
The bites are poor now
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 12.5 | 13.8 | 13.5 | 14.9 | 15.8 | 14.9 | 13.9 | 13 | 12.2 | 13.1 | 13.6 | 14.7 | 13 | 14.4 | 16.7 | 17.3 | 15.5 | 15.8 | 12.6 | 11.1 | 10.3 | 9.5 | 8.4 | 8.1 |
| 8° | 9° | 9° | 9° | 10° | 10° | 10° | 10° | 11° | 12° | 13° | 15° | 15° | 16° | 17° | 17° | 17° | 17° | 15° | 13° | 13° | 12° | 11° | 10° |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| 84 | 84 | 84 | 83 | 82 | 83 | 83 | 83 | 84 | 80 | 77 | 76 | 76 | 72 | 71 | 70 | 70 | 74 | 79 | 82 | 84 | 84 | 87 | 89 |
Sam
AI Fishing Assistant for Grindstone Lake
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