A living culture on the shoreline
The Innu name for the lake is Pekuakami (“shallow/flat lake”). Visit the nearby community of Mashteuiatsh to learn the culture and history of the Pekuakamiulnuatsh at the Musée ilnu.
Quick Facts (at a glance)
Region: Saguenay–Lac-Saint-Jean, Québec
Area / Depth: ~1,053 km²; ~11 m average depth; regulated levels
Outflow: Saguenay River (toward the St. Lawrence)
Signature event: Traversée internationale du lac Saint-Jean – a 32 km open-water swim from Péribonka to Roberval held the last Saturday of July.
Cycling: Véloroute des Bleuets—a paved multi-use loop ~256 km encircling the lake.
Fishing: species, seasons & rules (read this first)
Target species: walleye (doré jaune), northern pike (brochet), yellow perch—and the local legend ouananiche (landlocked Atlantic salmon).
Authorizations: Lac Saint-Jean is managed as a Community Wildlife Area (AFC/CLAP). In addition to your Québec sport-fishing licence, anglers must carry the CLAP authorization (year-round, including winter burbot lines).
Zone & key rules: The lake falls in Fishing Zone 28. Among the specifics: walleye over 47 cm must be released in the Lac Saint-Jean AFC (exceptions apply elsewhere). Always verify the current regulations before your trip.
Ice fishing? Roberval builds a seasonal ice village with services right on the lake—check local opening/closing notices before heading out.
Where to start (public access):
Marina de Péribonka – fuel, water, pump-out, launch ramp, transient docks; direct access to the lake via the Péribonka River. Great for trailering in.
Port de plaisance d’Alma – seasonal and day docks; good jumping-off point for the southeast shore.
Pro tip (Waterinfo): On windy days, this shallow giant builds short, steep chop. Plan crossings in the morning and use shoreline hops between bays.
Boating & paddling highlights
Big-water cruising: Long, open fetch; plan routes with fuel stops at marinas (Roberval/Alma/Péribonka) and watch afternoon winds.
Sea-kayak & SUP: Parc national de la Pointe-Taillon offers calm beach launches, rentals (via partners), and island camping itineraries—ideal for multi-day paddle-camping.
Must-see event from the water: Anchor off Roberval to witness the Traversée finish line atmosphere (follow local navigation/anchoring advisories during the festival).
Camping & beaches
Parc national de la Pointe-Taillon (SÉPAQ): signature sandy beaches, lakeside bike trail, serviced and ready-to-camp options near Saint-Gédéon and Taillon sectors. Reserve early in peak season.
Vauvert-sur-le-lac-Saint-Jean (Dolbeau-Mistassini): long natural beach, family-friendly campground, cabins, and on-site rentals.
When to go
Boating & beaches: Late June–August for the warmest water and the most services open around the lake.
Fishing: Spring walleye and pike; summer ouananiche in current edges and along smelt lines; winter brings a lively ice-fishing scene (check CLAP/Zone 28 dates every year).
Events: The Traversée internationale caps July—expect busy marinas and book lodging ahead.
Traversée internationale du lac St-Jean
Sample one-day itineraries
Angler’s day (trailered boat):
Launch at Péribonka → early troll for ouananiche along drop-offs → midday beach stop at Pointe-Taillon → late-day walleye jigging in lee shores → overnight at a local campground.
Family beach & bikes:
Morning swim at Pointe-Taillon → rent bikes and ride a leg of the Véloroute des Bleuets → sunset picnic on the sand.
Culture & waterfront walk:
Visit Musée ilnu de Mashteuiatsh → café stop with lake views → golden-hour stroll on a municipal beach.
