We track 13 dive operators in Brockville and Thousand Islands. 5 teach certification courses (6 PADI, 1 SDI/TDI). 2 run snorkelling trips. Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.
The 8 highest-ranked of 13. How Fin Rank works
| Rank | Operator | TripAdvisor | Discovery dive | Agencies | Website | |
|---|---|---|---|---|---|---|
| 1 | Dive Brockville Adventure Centre | 4.7(143) | none | none | PADI |
Which centres run each site, named on their own websites or confirmed by the owner.
Fin lists 13 dive operators in Brockville and Thousand Islands. 5 of them run certification courses.
PADI is the most common agency (6 centres), followed by SDI/TDI (1).
2 of the 13 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 Brockville Adventure Centre is a PADI 5 Star Dive Centre located in Brockville, Ontario. They offer a range of services including dive courses, equipment sales and rentals, and guided dives to local shipwrecks. The centre is situated at 12 Water Street East.

Sharky's Scuba Supply Ottawa is a sporting goods store in Ottawa, Ontario, that offers scuba diving services. They are open seven days a week.
Thousand Island Pleasure Diving is a dive shop located in Mallorytown, Ontario, offering PADI courses, equipment sales, and servicing. They also provide guided dives and boat trips in the Thousand Islands region. This appears to be a second location for the Lansdowne shop.
Angry Octopus Diving is a dive shop located in Gananoque, Ontario, offering PADI courses and dive services. They are situated in the Thousand Islands region, known for its underwater attractions.
Kanata Diving Supply is a sporting goods store located in Kanata, Ontario. It has a high Google rating of 4.9 based on 134 reviews. The store is operational and offers wheelchair accessible parking and entrance.
Silent Diving - Rebreather Sales And Training is a dive centre located in Brockville, Ontario, specializing in rebreather sales and training. They offer courses and equipment for technical diving. The business is situated on Brockmount Place.
Thousand Island Pleasure Diving is a dive shop located in Lansdowne, Ontario, offering PADI courses, equipment sales, and servicing. They also provide guided dives and boat trips in the Thousand Islands region.
The Prescott Scuba Park is a dedicated dive training area located along the St. Lawrence River. It features a ramped entry, underwater training platforms, submerged anchors, and a sunken dinghy, making it ideal for learning and practicing dive skills.
Seaway Valley Divers is a scuba diving club established in 1971 that focuses on underwater adventures in the St. Lawrence River. The club promotes safe diving practices and organizes various diving experiences and social events for its members. They offer boat charters and coordinate shore dives for divers of different experience levels.
| 2 | 4.1(67) | none | none | PADI | Visit |
| 3 | Thousand Island Pleasure Diving | 4.8(16) | none | none | PADI | Visit |
| 4 | Angry Octopus Diving | 4.9(15) | none | none | PADI | Visit |
| 5 | Kanata Diving Supply | 4.9(137) | none | none | none | Visit |
| 6 | Silent Diving | 5.0(1) | none | none | SDI/TDI | Visit |
| 7 | EPSO | 4.6(36) | 4.9 | none | none | Visit |
| 8 | Thousand Island Pleasure Diving | 4.8(16) | none | none | PADI | none |