We track 14 dive operators in Cottesloe. 7 teach certification courses (8 PADI, 1 SSI). 2 run snorkelling trips. The biggest cluster is around Darch, 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 | 4.8(49) | none | none | PADI | Visit |
Which centres run each site, named on their own websites or confirmed by the owner.

Fin lists 14 dive operators in Cottesloe, with the biggest cluster around Darch. 7 of them run certification courses.
PADI is the most common agency (8 centres), followed by SSI (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.

Western Blue Dive & Charters is a PADI 5 Star Dive Centre offering a range of diving and snorkeling services. They provide dive courses, equipment rental, and guided dive trips. They are located in Mindarie, Western Australia.

Perth Diving Academy - Hillarys is a sporting goods store located at 1 Northside Dr, Hillarys WA 6025, Australia. It has a Google rating of 4.4 based on 201 reviews. The business is operational and open seven days a week from 8:30 AM to 6:00 PM.
Dolphin Scuba Diving is a dive shop located in Welshpool, Western Australia. They offer scuba diving services, likely including courses and equipment. Their address is Unit 3/129 Welshpool Rd, Welshpool WA 6106, Australia.

Scuba Obsession is a school located at 3/34 Fallon Rd, Landsdale WA 6065, Australia. It has a Google rating of 4.9 based on 167 reviews. The business is operational and open seven days a week from 9:00 AM to 5:00 PM.
Scuba Care Australia is a service provider located at Unit 1/24 Triumph Ave, Wangara WA 6065, Australia. It has a Google rating of 4.6 based on 13 reviews. The business is operational with weekday opening hours from 10:00 AM to 4:00 PM.
Image Dive and Charters is a school and tour agency located at 1/46 Paramount Dr, Wangara WA 6065, Australia. It has a Google rating of 4.3 based on 6 reviews. They also have a listing as a tour agency at South Side Drive, Hillarys WA 6025, Australia, with a rating of 4.4 based on 7 reviews and operating hours from 7:00 AM to 6:00 PM daily.
Perth Ocean Diving is a school located at 141 Adelaide Terrace, East Perth WA 6004, Australia. It has a Google rating of 4.9 based on 89 reviews. The business is operational and open seven days a week from 8:00 AM to 4:00 PM.

Rusty Freediving is a sports activity location at 1 Baden St, Osborne Park WA 6017, Australia. It has a Google rating of 5 based on 139 reviews. The business is operational and listed as open 24 hours a day, seven days a week.
Dive Superstore is a sporting goods store located at 215 Scarborough Beach Rd, Mount Hawthorn WA 6016, Australia. It has a Google rating of 4.7 based on 172 reviews. The business is operational and open seven days a week from 9:00 AM to 5:00 PM.

Bubbles Freediving Academy is a sports activity location at 379 Hay St, Perth WA 6000, Australia. It has a Google rating of 5 based on 10 reviews. The business is operational but has limited opening hours, only open on Friday evenings and Saturday evenings.
| 2 | 4.4(201) | none | none | PADI | Visit |
| 3 | Dolphin Scuba Diving | 4.8(234) | none | none | PADI · SSI | Visit |
| 4 | 4.9(167) | none | none | PADI | Visit |
| 5 | Scuba Care | 4.6(13) | none | none | PADI | Visit |
| 6 | Image Dive and Charters | 4.3(6) | none | none | PADI | Visit |
| 7 | Perth Ocean Diving | 4.9(89) | none | none | PADI | Visit |
| 8 | 5.0(139) | none | none | none | Visit |