








About this water
One of Ontario's most popular fishing lakes, famous for its jumbo perch and excellent ice fishing.
Clear to slightly turbid. Moderate depth near shore, drops off quickly. Ice fishing from mid-January to mid-March.
FMZ 16 regulations — Southwestern Ontario & Lake Simcoe
The most southerly inland zone in the province. It includes all of southwestern Ontario, is predominantly made up of large river systems, and includes Lakes Simcoe and Couchiching. It has the largest urban population of any fisheries management zone. The Great Lakes themselves are separate zones (13, 14, 19 and 20).
- Lake Simcoe lake trout: Jan 1 – Sept 30; S-2/C-1 (one over 45 cm).
- Lake Simcoe whitefish: Dec 1 – Mar 15; S-2/C-1.
- Smallmouth bass: 4th Saturday in June – Nov 30; S-4/C-2.
- Rainbow trout (tributaries): Apr 1 – Sept 30 & 4th Sat Nov – Mar 31; check specific rivers.
Zone check: FMZ 16 confirmed from this water's coordinates against the official Ontario zone boundaries (reviewed 2026-08-12).
Summary only — always confirm current seasons and limits on the Ontario MNRF FMZ 16 page before your trip.
Seasonal availability
Open-season windows for the species found at Lake Simcoe – Keswick Pier, taken from the FMZ 16 regulation summary. Green months are within a published open season — they are not a prediction of how well fish will bite.
- check specific rivers.
No FMZ 16 season line published in our summary for: Perch, Herring. Check the official page before keeping these species.
Summary only, and seasons change annually. Confirm dates on the Ontario MNRF FMZ 16 page before your trip.
Fishing tips
- Simcoe ice fishing is world-class — perch on shallow flats, lakers on deep rock piles.
- Grand River smallmouth respond to tube jigs in current seams.
- For ice fishing, use a flasher to locate schools of perch near the bottom. Tip your jigs with a minnow head for best results.
- Access: Free municipal parking lot at Keswick Pier, approximately 50 spots. Accessible year-round.
Solunar Calendar— Lake Simcoe – Keswick Pier
Waxing Gibbous
93% illuminated · Age 12.2d
🌔 Tue, Aug 25
93% · Rating 93🌔 Wed, Aug 26
97% · Rating 98🌕 Thu, Aug 27
100% · Rating 100Major windows (~2 h) cluster around moon transit and antitransit; minor windows (~1 h) around moonrise and moonset. Local approximations — verify against a printed almanac for planning.
Gear setup
- Setup:
- Light to ultralight spinning setup for perch; medium for lake trout trolling
- Rod:
- 6'6" ultralight spinning rod for perch jigging
- Reel:
- Size 1000–2000 spinning reel with smooth drag
- Line:
- 4–6 lb monofilament or fluorocarbon
- Best bait:
- Live minnows, Wax worms, Emerald shiners
- Best lures:
- Small tube jigs (1/16 oz), Swedish Pimple, Rapala Jigging Rap, Berkley Gulp Minnow
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