We track 14 dive operators in Brockville and Thousand Islands. 5 teach certification courses (6 PADI, 1 SDI/TDI). 2 run snorkelling trips. The biggest cluster is around Prescott, with 3. Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.
The 8 highest-ranked of 14. How Fin Rank works
| Rank | Operator | TripAdvisor | Try dive | Agencies | Website | |
|---|---|---|---|---|---|---|
| 1 | Dive Brockville Adventure Centre | 4.8(27) | none | none | PADI |
Which centres run each site, named on their own websites or confirmed by the owner.
Fin lists 14 dive operators in Brockville and Thousand Islands, with the biggest cluster around Prescott. 5 of them run certification courses.
PADI is the most common agency (6 centres), followed by SDI/TDI (1).
2 of the 14 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.
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.
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.
Rothesay Dive Site is a popular freshwater scuba diving destination in the St. Lawrence River, known for its clear water and a century-old shipwreck. It offers a unique diving experience with artifacts scattered along the river bottom, accessible from both land and boat.
Kanata Diving Supply is a sporting goods store that appears to also offer diving services in Ottawa, Ontario. They have a high rating and a good number of reviews.
| 2 | 4.0(64) | 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 | Silent Diving | 5.0(1) | none | none | SDI/TDI | Visit |
| 6 | Thousand Island Pleasure Diving | 4.8(16) | none | none | PADI | none |
| 7 | Kanata Diving Supply | 4.9(134) | none | none | none | Visit |
| 8 | EPSO | 4.7(34) | none | none | none | Visit |