We track 33 dive operators in Lake Ontario. 11 teach certification courses (8 PADI, 4 NAUI). 4 run snorkelling trips. 1 offer accommodation alongside diving. The biggest cluster is around Etobicoke, with 6. Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.
The 8 highest-ranked of 33. How Fin Rank works
| Rank | Operator | TripAdvisor | Discovery dive | Agencies | Website | |
|---|---|---|---|---|---|---|
| 1 |  Dive World | 4.9(207) | none | none | none | Visit |
Which centres run each site, named on their own websites or confirmed by the owner.
Fin lists 33 dive operators in Lake Ontario, with the biggest cluster around Etobicoke. 11 of them run certification courses.
PADI is the most common agency (8 centres), followed by NAUI (4). SSI, SDI/TDI, SDI, CMAS also appear.
1 operator in Lake Ontario offers accommodation alongside diving.
4 of the 33 operators we track run snorkelling tours.
Operators are sorted by Fin Rank, a 100-point profile strength score: contact details, what they offer, the dive sites they run, their Google reputation, whether the owner has claimed the listing, and whether their own website links to Fin. 0 listings here are owner-verified. The formula is published in full on the Fin Rank page.
Dive World is a dive shop located in Etobicoke, Ontario, Canada. They are a sporting goods store that appears to be operational. Their Google rating is 4.9 stars based on 201 reviews.
The Dive Academy is a full-service snorkeling and scuba diving centre located in Oakville, Ontario. They provide comprehensive training programs, equipment sales and service, and organize dive travel adventures for both new and experienced divers.
Oakville Divers is a PADI 5 Star Training Facility that has been operating for over 30 years. They offer a full range of scuba diving courses, from entry-level to professional development, as well as specialty courses. They also provide equipment sales, rentals, and service, and organize local dive charters and group travel.
AquaSystems Scuba is a sporting goods store located in Mississauga, Ontario. They are operational and have a high Google rating based on numerous reviews. The store offers wheelchair accessible parking and accepts various payment methods including credit cards, debit cards, and NFC.
Aquarius Scuba is a sporting goods store located at 4020 Dundas St W, Toronto, ON M6S 4W6, Canada. It has a 4.9-star rating from 1738 reviews and offers delivery, curbside pickup, and free parking lot options. The store is wheelchair accessible and accepts credit cards, debit cards, NFC, and cash.
Rec & Tek Scuba Inc. is a scuba shop in Hamilton, Ontario, that provides equipment rentals, air and nitrox fills, and scuba instruction. The company has been serving the local community since 2001 and offers equipment maintenance and repair services.
Deans Sport and Dive has been teaching scuba diving for over 35 years, offering smaller class sizes and personalized equipment advice. They provide internationally recognized training through Scuba Diving International (SDI) and offer courses for snorkeling, scuba, and freediving. They also provide equipment rentals and have buddy pool sessions for skill refreshers.
Scuba 2000 is a PADI 5 Star Dive Centre offering a comprehensive range of scuba diving services. They provide equipment sales, service, rentals, and a full spectrum of PADI courses, from beginner to professional levels. They also organize dive trips and have a strong focus on diver education.
Mississauga Diving has been providing scuba instruction since 1963 and is a 5-star instructor facility. They offer a comprehensive dive experience with highly skilled instructors holding various certifications, including technical and commercial diving. They provide open water dives year-round in the Greater Toronto Area and have a strong community focus.
Dive Source Scuba is a PADI 5 Star Dive Centre offering a full range of scuba diving services. They provide equipment sales, service, and rentals, along with PADI certification courses from beginner to advanced levels. They also organize dive trips and have a focus on diver training and community.
| 2 | The Dive Academy | 5.0(192) | none | $100 | SSI | Visit |
| 3 | Oakville Divers | 4.5(96) | none | none | PADI | Visit |
| 4 | AquaSystems | 4.8(271) | none | none | none | Visit |
| 5 | Aquarius Scuba | 4.9(1,766) | 5.0 | none | none | Visit |
| 6 | Rec & Tek Scuba Inc. | 5.0(68) | 5.0 | none | NAUI · PADI · SDI/TDI | Visit |
| 7 | Deans Sport and Dive | 5.0(20) | none | none | SDI | Visit |
| 8 | Scuba 2000 | 4.9(366) | 3.9 | none | PADI | Visit |