Sailseer

Lac Saint-Louis

Inland lake · Area 159.1 km² · 14 harbours

Show on mapPlan route from Baie-d'Urfé Yacht Club

Lac Saint-Louis is an inland lake with no waterway to the sea (Canada). Area 159.1 km². Sailseer covers 14 harbours, including Baie-d'Urfé Yacht Club, Base de Voile de Pointe-Claire - Grande-Anse, Beaconsfield Yacht Club, Centre nautique Châteuguay, Club nautique de l'Île Perrot.

Rules on the lake

St. Lawrence Seaway: The St. Lawrence Seaway from Montréal to Lake Ontario is operated by the Canadian St. Lawrence Seaway Management Corporation (five locks) and the US Great Lakes St. Lawrence Seaway Development Corporation (Snell and Eisenhower). Pleasure craft in 2026 from 8 to 10 May and from 15 May to 18 October; the Canadian locks at fixed times with online booking, CAD 25 per lock (Beauharnois both CAD 50), Snell and Eisenhower on demand for USD 30 each. At least 6 m and 900 kg, not under sail, at most 35.5 m above the water, life jackets for everyone. The river is the border between Canada and the USA: boats only passing through do not report; anyone who lands or anchors in the other country reports at once (Canada to the CBSA, +1 888-226-7277; USA through the CBP ROAM app).

Harbours on the lake

Formalities

Frequently asked questions

Lac Saint-Louis: What rules apply to boats?

The St. Lawrence Seaway from Montréal to Lake Ontario is operated by the Canadian St. Lawrence Seaway Management Corporation (five locks) and the US Great Lakes St. Lawrence Seaway Development Corporation (Snell and Eisenhower). Pleasure craft in 2026 from 8 to 10 May and from 15 May to 18 October; the Canadian locks at fixed times with online booking, CAD 25 per lock (Beauharnois both CAD 50), Snell and Eisenhower on demand for USD 30 each. At least 6 m and 900 kg, not under sail, at most 35.5 m above the water, life jackets for everyone. The river is the border between Canada and the USA: boats only passing through do not report; anyone who lands or anchors in the other country reports at once (Canada to the CBSA, +1 888-226-7277; USA through the CBP ROAM app).

Lac Saint-Louis: How big is the lake?

Area 159.1 km².

Lac Saint-Louis: Which harbours are there?

Sailseer covers 14 harbours, including Baie-d'Urfé Yacht Club, Base de Voile de Pointe-Claire - Grande-Anse, Beaconsfield Yacht Club, Centre nautique Châteuguay, Club nautique de l'Île Perrot.