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View of the swimming Quarry from the deck

The Quarry

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Swimming Quarry

Cool off this summer at Canada's largest outdoor freshwater swimming pool! The St. Marys Quarry was formerly a limestone Quarry that closed in 1920. In the mid-1940s it was converted into a public swimming area and remains one of the most popular spots in the area to visit on those hot summer days!  A variety of outdoor activities and services are offered including:

  • Cliff jumping
  • Water trampoline
  • Super Splash Waterpark
  • Canteen
  • Picnic areas
  • Washrooms and changerooms

girl jumping into water off of trampoline

See the Town of St. Marys website for more information on swim times and admission guidelines of the Quarry and how to register for the Super Splash Waterpark. 

"Fishing" Quarry

St. Marys not only has one quarry - but two! A second quarry across the road from the swimming quarry is the west quarry, which is ideal for fishing! The Quarry is home to a few species of fish including Common Carp, Pumpkinseed and Rock Bass. Fishing is only permitted in the west quarry (swimming is not permitted in the west '"fishing" quarry).

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