How to Swim in an St. Marys Quarry This Summer
If you’re seeking a unique and refreshing way to spend your summer days, the St. Marys Quarry in Ontario is the perfect destination. Officially open for the season, this historic site offers a beautiful freshwater swimming hole just a short drive from Toronto.
A Brief History of the St. Marys Quarry
Located in the town of St. Marys, about 2.5 hours west of Toronto, the quarry is a hidden gem. Originally a limestone quarry that operated from the mid-1800s until 1920, it has since been transformed into a public swimming area. In 1945, the quarry was repurposed into what is now considered the largest freshwater pool in Canada.
For over 80 years, this quarry has served as a popular spot to cool off in its crystal-clear waters. The area’s limestone history even earned the town the nickname “Stonetown,” thanks to the abundant limestone extracted from the quarry, which was used to build much of the town.
Enjoy the Thrills and Relaxation of the Quarry
Whether you want to relax or seek adventure, the St. Marys Quarry has something for everyone:
- Cliff Jumping: Thrill-seekers can jump off the limestone cliffs surrounding the quarry (when water levels permit). Just be sure to check local guidelines before leaping in.
- Super Splash Waterpark: For a more adventurous experience, visit Super Splash, a massive inflatable obstacle course right on the water. Timed admissions are available for 2-hour slots, so be sure to grab your tickets early.
- Sunbathing and Relaxation: Not into swimming? No problem! There are grassy areas for sunbathing, and you can enjoy a picnic while soaking in the summer vibes.
Pricing and Admission Details
Admission to the St. Marys Quarry is affordable:
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- Adults: $7.50
- Children/Youth (3-18): $5.00
The quarry is open daily from June 27 to Labor Day, between 11:00 AM and 7:30 PM.
For those planning a full day of fun, there are additional options, such as the Resident Season Pass for locals. This pass offers a discounted rate for frequent visitors, with weekday access throughout the season and regular admission on weekends.
Additional Amenities
In addition to the swimming and water activities, the quarry offers:
- Rafts and slides for added fun
- A 25-foot water trampoline for a bit of extra bounce
- Shaded seating areas and grassy spots for relaxing
- Life jackets available for safety
- A canteen offering summer snacks and treats
How to Purchase Tickets
Tickets for general admission can be purchased through their online portal or at the quarry. However, Super Splash Waterpark passes are sold separately and are not included with regular quarry admission. Visit supersplashstmarys.ca for more information and to book passes for the waterpark.
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The St. Marys Quarry is a fantastic way to spend your summer in Ontario, offering a blend of history, adventure, and relaxation. Whether you’re swimming in the quarry’s crystal-clear waters, enjoying the Super Splash obstacle course, or simply basking in the sun, it’s a must-visit spot this summer.
More…
- https://www.blogto.com/sports_play/2025/07/swim-abandoned-ontario-quarry-summer
- https://www.townofstmarys.com/en/recreation-and-culture/Swimming-Quarry.aspx
- https://www.townofstmarys.com/en/news/st-marys-quarry-opens-for-the-season-on-june-27.aspx
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