Lake Rosseau – Port Carling

About this water

One of the iconic Muskoka Three lakes, Rosseau offers deep-water lake trout and exciting smallmouth bass on its many rocky shoals.

Deep, clear Muskoka Shield lake connected to Lake Joseph and Lake Muskoka via channels. Rocky shoals and sandy bays.

FMZ 15 regulations — Central Ontario — Parry Sound to Pembroke

A large inland zone in central and eastern Ontario, reaching from the Georgian Bay shoreline in the west to the Ottawa River valley in the east; Georgian Bay itself (FMZ 14) and the Ottawa River itself (FMZ 12) are separate zones. Its northern boundary follows the Pickerel River, Highway 522 and the northern edge of Algonquin Park. It contains many natural lake trout and brook trout lakes and Algonquin Provincial Park.

• Lake trout: Jan 1 – Sept 30; S-1/C-1 on most lakes.
• Smallmouth bass: fourth Saturday in June – Nov 30; S-4/C-2.
• Brook trout: 4th Sat in April – Sept 30 on most waters; S-5/C-2.
• Algonquin Park: park-specific rules — barbless hooks required, no live baitfish.

Zone check: FMZ 15 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 15 page before your trip.

Seasonal availability

Open-season windows for the species found at Lake Rosseau – Port Carling, taken from the FMZ 15 regulation summary. Green months are within a published open season — they are not a prediction of how well fish will bite.

No FMZ 15 season line published in our summary for: Perch. Check the official page before keeping these species.

Summary only, and seasons change annually. Confirm dates on the Ontario MNRF FMZ 15 page before your trip.

Fishing tips

• Cold, clear lakes — early ice-out lakers stay shallow for two weeks, then plummet.
• Algonquin brook trout responds to small streamers and slow-trolled spoons.
• Rosseau's rocky points hold schools of smallmouth. Cast tubes parallel to the shoreline and work them slowly. Avoid boat traffic mid-day on summer weekends — fish early.
• Access: Public launch at Port Carling locks. Street parking and small lot near the bridge. Can fill up on summer weekends.

Gear setup

Setup:

Medium spinning for bass; light trolling for lakers; canoe/kayak friendly

Rod:

6'8" medium spinning rod

Reel:

Size 2500 spinning reel

Line:

8 lb fluorocarbon

Best bait:

Crayfish, Leeches, Worms

Best lures:

Tube jig (watermelon), Ned rig, Small spoon (gold/silver), Wacky Senko