🏆 Ontario's Top 5 Bass Lakes Right Now

Bass season in most Ontario Fisheries Management Zones (FMZs) opens the fourth Saturday of June — June 27, 2026. However, season dates vary by zone and species. In some areas, largemouth and smallmouth seasons open on different dates. Always confirm current regulations at ontario.ca or through the Ontario Fishing Regulations Summary before heading out. Fishing for bass before your zone's opener — even catch-and-release — may not be permitted.

Lake St. Clair straddles the Ontario-Michigan border and is regarded as one of the premier smallmouth bass fisheries on the continent. June puts you right in the heart of the action.

From May through June, smallmouth bass on the St. Clair system are in various stages of spawning — Lake St. Clair in particular functions as a massive spawning flat, with waves of smallmouth in different phases of the process. Each phase offers an opportunity to hook a prized fish. The fish are visible and aggressive, making this one of the most exciting times of the entire season to be on the water.

As the spawn winds down and post-spawn smallmouth begin schooling, the bite transitions offshore into deeper water. Top techniques reported for St. Clair include soft body swimbaits, hard jerkbaits, drop shots, and tubes. Topwater baits and Super Flukes are especially productive during the spawning phase.

Note: An Ontario fishing licence is required on the Canadian side of St. Clair. A Michigan licence is required on the U.S. side.

• Target species: Smallmouth bass (dominant), largemouth bass, walleye
• Best technique: Topwater, Super Flukes (spawn); drop shot, tubes (post-spawn)
• Hot areas: Spawning flats, offshore schools post-spawn
• Licence required: Ontario fishing licence (Canadian side)

Ask serious smallmouth anglers to name one Ontario lake capable of producing a record fish, and Lake Simcoe comes up every time. In the last two decades, the lake has become one of Canada's premier destinations for giant smallmouth bass. The catalyst: the round goby, a small invasive baitfish that colonized the lake in the late 1990s. Simcoe's smallmouth have grown fat on the protein-rich bottom-dwellers. Five-pound bass are rare in Ontario — but they're routine on Simcoe. Smallmouth up to eight pounds are caught regularly, and many believe the lake will soon produce a new Canadian record.

While smallmouth numbers are somewhat lower than in past decades, monitoring shows larger average fish size — a sign of ongoing ecosystem management rather than decline. June through August is peak season, with bass season opening the fourth Saturday of June. Simcoe's large smallmouth tend to be found in relatively deep water, typically 15 to 30 feet, around islands, rocky shorelines, drop-offs, and points all around the lake.

Conservation note: A strong catch-and-release ethic among Simcoe anglers has been central to producing these trophy fish. Many guides request that all bass over four pounds be released.

• Target species: Smallmouth bass (trophy class), largemouth (Cook's Bay)
• Best technique: Crayfish-coloured crankbaits, jerkbaits, topwaters, jigs; depths 15–30 ft
• Hot areas: Islands, rocky points, drop-offs around the lake
• Season opens: 4th Saturday of June (June 27, 2026)

The Thousand Islands section of the St. Lawrence River near Gananoque and Kingston is one of those fisheries that has to be experienced to be believed. The St. Lawrence and this part of Lake Ontario combine to provide anglers with one of the best places in North America to catch smallmouth bass. Days of 30, 40, or even 50 fish are common for anglers who run and gun — and the area holds some genuinely massive specimens.

The region includes over 1,500 islands, ranging from a few square feet to several square miles — a vast complex of rocky shoals, deep ledges, and weedy embayments that supply virtually endless fishing opportunities. In spring and early summer, shorelines that provide good spawning habitat out of the current hold a lot of fish. As the season progresses, any island with rocks, deep nearby water, or current can produce.

Good catches of smallmouth are consistently taken around islands, off points, and in bays throughout the region. Early season, live bait including minnows, worms, and crayfish is productive. As the season rolls on, small spinners, jigs, and rubber worms take over.

Season note: In the Thousand Islands / Lake Ontario zone (FMZ 20), largemouth bass opens the 3rd Saturday of June (June 20, 2026). Smallmouth bass opens the 1st Saturday of July (July 5, 2026). Confirm your zone's dates before fishing.

• Target species: Smallmouth bass (dominant), largemouth bass
• Best technique: Spinners, jigs, rubber worms; live bait (minnows, crayfish) early season
• Hot areas: Rocky islands, points, bays; shoals and ledges
• Access: Launch from Gananoque, Kingston, or Rockport

Georgian Bay is Ontario bass fishing in its most elemental form. The Key River area in particular holds some of the best big smallmouth and largemouth bass fishing in all of Canada — with fish up to six pounds on surface lures a genuine possibility for anglers who are in the right place at the right time. Both the Canadian record largemouth and smallmouth bass have historically been linked to these waters.

As waters warm through spring into June, smallmouth bass become increasingly active and are often found in shallower water — prime time for anglers targeting them before and just after opener. The sheer scale of Georgian Bay means fishing pressure is relatively low outside of the well-known access points, giving exploratory anglers a genuine edge. The Canadian Shield rock structure throughout the bay creates ideal smallmouth habitat at virtually every turn.

Bass season on Georgian Bay follows the standard provincial opener — the fourth Saturday of June. Bass may not be legally targeted before that date even catch-and-release, so check your specific FMZ before casting.

• Target species: Smallmouth bass, largemouth bass
• Best technique: Surface lures, jigs, soft plastics; rock structure focus
• Hot areas: Key River area, rocky points, island shorelines
• Season opens: 4th Saturday of June (June 27, 2026) — verify your FMZ

For anglers chasing largemouth, Rice Lake in the Kawarthas stands alone in southern Ontario. The largemouth bass population here is nothing short of astounding — if you were to compile a list of all southern Ontario lakes considered excellent largemouth waters, Rice would be near the top every time. Rice Lake bass can grow huge, with many fish in the 5 to 6 lb range caught annually.

Rice Lake has a reputation for producing excellent largemouth bass fishing all open-water season long. Soft-plastic lures, spinnerbaits, and shallow-diving crankbaits all produce along weed beds and off shorelines. One of the most reliable areas is along the old railway structure running up the middle of the lake toward Tick Island, where mixed weeds and rocks in 4 to 7 feet of water consistently hold fish.

In peak summer, largemouth concentrate on weed flats and the approach is all about finding openings and pockets in heavy vegetation. Texas-rigged worms, plain jigs, and creature baits in motor-oil and smoke colours work best. Use heavy line — 14 lb test and above — once fish are pulling for cover. For something different, try frog imitations in the lily pads near Bensfort Bridge on the Otonabee River.

Rice Lake also holds solid smallmouth bass, walleye, and muskellunge — making it an excellent all-day destination when bass action slows.

• Target species: Largemouth bass (primary), smallmouth bass, walleye, muskie
• Best technique: Texas-rigged plastics, flipping jigs, spinnerbaits, frog imitations
• Hot areas: Weed flats, railway structure toward Tick Island, Otonabee mouth
• Location: Kawarthas — approx. 90 min northeast of Toronto

Bass season's opening week is one of the most exciting on Ontario water. Fish are post-spawn, recovering, and moving — and the anglers who've done their homework on structure, timing, and presentation will be the ones putting fish in the net. Review your FMZ regulations, top up your licence, and get the boat ready.

All fishing in Ontario requires a valid Ontario Outdoors Card and fishing licence. Regulations vary by zone and species. Always verify current season dates and limits at ontario.ca or in the current Ontario Fishing Regulations Summary before heading out.