Berthier-sur-Mer, Quebec: History, Things to Do and Travel Guide
Berthier-sur-Mer is a St. Lawrence River municipality in Quebec’s Chaudière-Appalaches region, east of Québec City on Route 132. It is known for its marina, riverfront, old seigneurial name, ferry and cruise access toward Grosse Île, and a shoreline setting facing Île d’Orléans and the Isle-aux-Grues archipelago.
The community works best as a river stop. Its story is not a checklist of attractions; it is the way a small south-shore village became tied to navigation, settlement, sailing and access to historic islands.
How Berthier-sur-Mer Started
The name Berthier-sur-Mer comes from Alexandre Berthier, a Carignan-Salières officer and seigneur in New France. The Québec heritage register describes Berthier as an officer who arrived in New France in 1665 and became connected to seigneurial landholding in the colony.
The St. Lawrence shaped the settlement from the beginning. The river gave access to Québec, the islands and farms along the south shore. Over time the community became known as Berthier-en-Bas to distinguish it from Berthier in Lanaudière, and the later Berthier-sur-Mer name made the river identity explicit.
The marina and cruise departure point continue that water-facing pattern. Berthier-sur-Mer is still a place where the St. Lawrence is the main orientation point.
What Berthier-sur-Mer Is Like Today
Berthier-sur-Mer had 1,744 residents in the 2021 census. It is a municipality with local services, homes, riverside roads, a marina area, restaurants, seasonal traffic and easy Route 132 access.
Its public travel identity is closely linked to the marina and departures for Grosse Île. Parks Canada identifies Berthier-sur-Mer as the departure point for private ferry service to Grosse Île and the Irish Memorial National Historic Site, while regional tourism lists Croisières Lachance at 110 rue de la Marina.
Things to Do and Places Nearby
Start at the marina area. It gives the clearest view of how Berthier-sur-Mer relates to the river, islands, pleasure boating and visitor movement. From there, check cruise schedules for Grosse Île or the Isle-aux-Grues archipelago if you want a longer day on the water.
The village also works for a quieter Route 132 stop: river views, a short walk near the waterfront, food or coffee when open, and a look at the older settlement pattern along the shore. Keep the visit water-centred and leave extra time for boarding rules if you have booked a cruise.
If you are staying on shore, pay attention to how close the village sits to working water. Marina traffic, wind, river light and island views do most of the explaining, especially on clear days.
Quick Facts
- Province: Quebec
- Region: Chaudière-Appalaches
- Municipality type: Municipality
- Population: 1,744 in the 2021 census
- Official website: https://berthiersurmer.ca/
- Main travel themes: seigneurial history, St. Lawrence marina, Grosse Île cruises, Route 132, sailing and island access
Travel Notes
Berthier-sur-Mer is easiest by car or bicycle along Route 132. Cruise schedules, weather and river conditions can change plans, so confirm bookings before arrival. Parking is busiest around marina departures. If you are not taking a boat, plan a shorter visit focused on river views, local services and the village shoreline.