Safest Lakes to Swim In in Québec
50 lakes in Québec qualify as safest for swimming, all hold grade A or B and report chlorophyll-a (algae) under 10 µg/L. Always check local advisories on the day you swim.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Lac Beauport | La Jacques-Cartier | A | 16.7 ft | 4.7 µg/L | 2.2 µg/L |
| 2 | Lac Raquette | Beauce-Sartigan | A | 19.8 ft | 5 µg/L | 1.6 µg/L |
| 3 | Lac des Cornes | Antoine-Labelle | A | 20.7 ft | 3 µg/L | 1.3 µg/L |
| 4 | Lac PéRodeau | Antoine-Labelle | A | 22.3 ft | 3.1 µg/L | 1.1 µg/L |
| 5 | Lac Duhamel | Les Laurentides | A | 29.2 ft | 2 µg/L | 0.9 µg/L |
| 6 | Lac Vert | Papineau | A | 26.6 ft | 3.5 µg/L | 1.1 µg/L |
| 7 | Lac Farmer | Les Pays-d'en-Haut | A | 19 ft | 4.4 µg/L | 1.9 µg/L |
| 8 | Lac des Trois Montagnes | Les Laurentides | A | 23.6 ft | 3 µg/L | 1.1 µg/L |
| 9 | Lac ThéOdore | Les Pays-d'en-Haut | A | 16.1 ft | 5.5 µg/L | 2.8 µg/L |
| 10 | Lac Ouareau | Matawinie | A | 16.7 ft | 3.2 µg/L | 2.2 µg/L |
| 11 | Lac Windigo | Les Laurentides | A | 18.4 ft | 3.7 µg/L | 1.4 µg/L |
| 12 | Lac de la Grange | Les Laurentides | A | 20.2 ft | 3.7 µg/L | 1.5 µg/L |
| 13 | Lac de la DéCharge | Les Laurentides | A | 18.7 ft | 3.5 µg/L | 1.3 µg/L |
| 14 | Lac Chevreuil | Les Laurentides | A | 23 ft | 2.8 µg/L | 1.1 µg/L |
| 15 | Lac Cameron | Les Laurentides | A | 21.3 ft | 3.1 µg/L | 1.5 µg/L |
| 16 | Lac Rognon | Les Laurentides | A | 17.4 ft | 4 µg/L | 1.4 µg/L |
| 17 | Lac de la Sucrerie | Les Laurentides | A | 15.4 ft | 3.9 µg/L | 1.9 µg/L |
| 18 | Petit Lac des CèDres | La Vallée-de-la-Gatineau | A | 18.9 ft | 5.6 µg/L | 1.3 µg/L |
| 19 | Lac Sauvage | Les Laurentides | A | 20.3 ft | 3.3 µg/L | 1.1 µg/L |
| 20 | Lac Lesage | Antoine-Labelle | A | 22.3 ft | 3.9 µg/L | 1.4 µg/L |
| 21 | Lac SupéRieur | Les Laurentides | A | 16.4 ft | 4.9 µg/L | 2.2 µg/L |
| 22 | Lac ÉQuerre | Les Laurentides | A | 16.7 ft | 4 µg/L | 2.5 µg/L |
| 23 | Lac Gauthier | Les Laurentides | A | 20.5 ft | 3.7 µg/L | 1.1 µg/L |
| 24 | Lac Blue Sea | La Vallée-de-la-Gatineau | A | 21.3 ft | 4.6 µg/L | 1.1 µg/L |
| 25 | Lac Paquin | La Vallée-de-la-Gatineau | A | 30.8 ft | 3.1 µg/L | 0.6 µg/L |
| 26 | Lac Humqui | La Matapédia | A | 17.7 ft | 5.4 µg/L | 1.7 µg/L |
| 27 | Lac Joseph | Les Laurentides | A | 15.1 ft | 6.6 µg/L | 1.7 µg/L |
| 28 | Lac Provost | Matawinie | A | 19 ft | 3.4 µg/L | 1.5 µg/L |
| 29 | Lac Godon | Les Laurentides | A | 16.1 ft | 4.7 µg/L | 1.9 µg/L |
| 30 | Lac SylvèRe | Matawinie | A | 27.9 ft | 2.5 µg/L | 1.1 µg/L |
| 31 | Lac Corbeau | Matawinie | A | 15.9 ft | 5 µg/L | 1.9 µg/L |
| 32 | Lac Mondor | Mauricie | A | 15.4 ft | 8.4 µg/L | 2.1 µg/L |
| 33 | Lac à la Truite | La Vallée-de-la-Gatineau | A | 17.4 ft | 8.9 µg/L | 2.3 µg/L |
| 34 | Lac Aux Castors | Les Laurentides | A | 17.7 ft | 3.9 µg/L | 1.9 µg/L |
| 35 | Lac Black | Argenteuil | A | 15.1 ft | 5.9 µg/L | 1.4 µg/L |
| 36 | Lac Boyd | Argenteuil | A | 17.1 ft | 6.2 µg/L | 1.7 µg/L |
| 37 | Lac des Bouleaux | Urban agglomeration of Longueuil | A | 15.4 ft | 10.6 µg/L | 3 µg/L |
| 38 | Lac Brewer | Les Pays-d'en-Haut | A | 15.1 ft | 5.8 µg/L | 2.1 µg/L |
| 39 | Lac du Cardinal | La Vallée-de-la-Gatineau | A | 18.7 ft | 4.6 µg/L | 1.8 µg/L |
| 40 | Petit Lac du Cerf | Antoine-Labelle | A | 22.3 ft | 3.1 µg/L | 1.2 µg/L |
| 41 | Grand Lac du Cerf | Antoine-Labelle | A | 22.3 ft | 3.5 µg/L | 1.5 µg/L |
| 42 | Lac Clair | Argenteuil | A | 20.3 ft | 5.3 µg/L | 1.4 µg/L |
| 43 | Lac Curran | Argenteuil | A | 17.1 ft | 5.7 µg/L | 1.7 µg/L |
| 44 | Lac David | Antoine-Labelle | A | 17.1 ft | 5.2 µg/L | 1.9 µg/L |
| 45 | Lac Poulin | Beauce-Sartigan | A | 17.9 ft | 4.3 µg/L | 1.6 µg/L |
| 46 | Lac Vert | Papineau | A | 28.9 ft | 4 µg/L | 0.8 µg/L |
| 47 | Lac Plaisant | Maskinongé | A | 17.1 ft | 4.7 µg/L | 2.3 µg/L |
| 48 | Lac Viceroy | Papineau | A | 29.5 ft | 3.9 µg/L | 0.8 µg/L |
| 49 | Lac du Missionnaire Sud | Mékinac | A | 15.7 ft | 3.7 µg/L | 3 µg/L |
| 50 | Grand Lac des CèDres | La Vallée-de-la-Gatineau | A | 19.7 ft | 5.2 µg/L | 1.3 µg/L |