We track 17 dive operators in Walensee. 10 teach certification courses (9 PADI, 3 SSI). Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.
The 8 highest-ranked of 17. How Fin Rank works
| Rank | Operator | TripAdvisor | Discovery dive | Agencies | Website | |
|---|---|---|---|---|---|---|
| 1 | Sunshine Divers | 4.4(69) | none | none | PADI | Visit |
Which centres run each site, named on their own websites or confirmed by the owner.

Fin lists 17 dive operators in Walensee. 10 of them run certification courses.
PADI is the most common agency (9 centres), followed by SSI (3). IANTD also appear.
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.
Sunshine Divers is a dive shop located in St. Gallen, Switzerland. They offer diving equipment, courses, and possibly guided dives and trips.
Tauchersupply VERO GmbH is a dive center located in Haag that offers various diving courses including technical diving and freediving. The facility features its own indoor pool available for individual booking.
Zingg-Dive GmbH is a dive center located at St. Gallerstrasse 27A, 9402 Mörschwil, Switzerland. They offer diving courses and services.
Tauchschule Eat Sleep and Dive is a dive school located at Hauptstrasse 39A, 9400 Rorschach, Switzerland. They offer diving courses and services.
Into the blue diving is a dive center located at Bischofszellerstrasse 332, 9212 Arnegg, Switzerland. They offer diving courses and services.

Dive World Wide is a dive shop located at Brauerstrasse 85A, 9016 St. Gallen, Switzerland. They offer diving equipment and services.
H2O, DIE Tauchschule is a dive school located in Niederurnen, Switzerland. They offer diving courses and likely equipment rental and guided dives.
Underwater University is a diving center located in Staad, Switzerland. They offer a range of diving services, including courses and equipment rental. The center aims to provide comprehensive diving education and experiences.
Freediving Ostschweiz / Swissfreediver is a sporting goods store located in Ulisbach, Switzerland, with a perfect Google rating of 5 stars from 8 reviews. They are operational and offer wheelchair accessible parking.

Tauchshop Uhland AG, now operating as Tiefenstein UnterwasserWelten, is a dive shop located in Horn, Switzerland, offering a comprehensive range of diving equipment, training, and services. They provide air fills, equipment servicing, and are affiliated with PADI and SSI. The shop has a history dating back to 1986.
| 2 | Tauchersupply VERO | 4.9(64) | none | none | SSI · IANTD | Visit |
| 3 | Zingg-Dive | 4.8(8) | none | none | PADI | Visit |
| 4 | Tauchschule Eat Sleep and Dive | 4.9(26) | none | none | PADI | Visit |
| 5 | Into The Blue Diving | 4.9(24) | none | none | PADI | Visit |
| 6 | 4.7(10) | none | none | PADI | Visit |
| 7 | H2O, DIE Tauchschule | 5.0(8) | none | none | PADI | Visit |
| 8 | Underwater University | 4.5(2) | none | none | PADI · SSI | Visit |
