We track 7 dive operators in Bida Islands. 2 teach certification courses (2 PADI). 5 run snorkelling trips. 1 offer accommodation alongside diving. The biggest cluster is around Saladan, with 4. Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.
Hidden Depths Diving is a PADI 5 Star Dive Center located in Saladan on Koh Lanta. They offer speedboat trips for diving, snorkeling, and freediving, alongside a range of PADI courses. The operator emphasizes safety and environmental practices, having been awarded the PADI Green Star Award.
Andaman Dive Adventure Lanta is a PADI 5 star instructor development center based on Koh Lanta. The operator provides scuba diving courses, fun diving trips, and snorkeling excursions using their own custom-built boat. They offer services for both beginners and certified divers, including nitrox options and professional level training.
Lanta Diver is a dive center in Ko Lanta, Thailand, offering diving and snorkeling services. They have a Google rating of 4.9 stars from 650 reviews and are open daily.

Blue Planet Divers is a dive center located in Ko Lanta, Thailand, with a Google rating of 4.9 stars from 1492 reviews. They offer diving, freediving, and snorkeling services and are open daily.
Ko Lanta Diving Center is a sports activity location in Ko Lanta, Thailand, offering diving and snorkeling services. They have a Google rating of 4.9 stars from 215 reviews and are open daily.
Raya Divers Lanta is a tour agency in Ko Lanta, Thailand, with a Google rating of 4.8 stars from 14 reviews. They are temporarily closed.
The 7 highest-ranked of 7. How Fin Rank works
| Rank | Operator | TripAdvisor | Try dive | Agencies | Website | |
|---|---|---|---|---|---|---|
| 1 | Hidden Depths Diving | 5.0(430) | none | none | PADI | Visit |
Which centres run each site, named on their own websites or confirmed by the owner.


Fin lists 7 dive operators in Bida Islands, with the biggest cluster around Saladan. 2 of them run certification courses.
PADI is the most common agency (2 centres).
1 operator in Bida Islands offers accommodation alongside diving.
5 of the 7 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.
| 2 | Andaman Dive Adventure Lanta | 4.9(393) | none | $126 | PADI | Visit |
| 3 | Lanta Diver | 4.9(650) | none | none | none | Visit |
| 4 | Dive & Relax | 4.9(490) | none | none | none | Visit |
| 5 | 4.9(1,492) | none | none | none | Visit |
| 6 | Ko Lanta Diving & Snorkeling Center | 4.9(215) | none | none | none | none |
| 7 | Raya Divers | 4.8(14) | none | none | none | none |