Photo: There is a whole other world under there.


Our rating:

Divers often forget about Ko Chang in discussions on Thailand’s scuba scene, instead focusing on Ko Tao, Phuket, Ko Lanta and others.

Travel better, travel smarter

Save money, receive our latest updates and get the most out of your travels.


Photo of Diving

Yet the Chang archipelago’s depths conceal three shipwrecks along with the whale sharks spotted with some regularity around the islets and pinnacles. A few long-standing dive operations ensure that you’ll be in safe flippers.

All dive outfits have offices at Bang Bao Pier, where the dive boats shove off for sites like Hin Luk Bat to see the stingrays, moray eels and parrotfish glide alongside a 25-metre-deep pinnacle painted orange by Christmas-tree worms. It’s one of roughly 15 notable sites hosting vibrant marine life with visibility up to 20 metres in the vicinity of Ko Rang and other undeveloped national park islands.

You can also dive the wreck of the 100-metre-long HTMS Koh Chang (formerly USS Lincloln County), an American-built warship that saw action in the Pacific theatre of World War II before being passed to the Royal Thai Navy in the 1960s. Located near Salak Phet, the ship was intentionally sunk as a scuba-friendly memorial to the Thai vessels that were downed by French forces in the 1941 Battle of Ko Chang. These have since vanished beneath the silt of Ao Salak Phet.

The largest outfit is BB Divers, which maintains offices all over Ko Chang’s west coast as well as on Ko Mak and Ko Kut. While you won’t find live-aboard programs, BB does offer weeklong diving adventures including overnights on all three of these islands. Employing instructors “from all over the world”, the Belgian-owned company has six boats ranging from a small speedboat to a 50-seat double-decker. A serious free diving program is included among a wide range of fun dives and PADI courses.

Another long-standing dive outfit, Scuba Dawgs brings a little more attitude along with slightly cheaper prices for fun dives and open-water courses via its three boats. Though offering fewer options than BB, the Dawgs also have a great reputation for providing good service and reasonable prices. Divers may also receive free or discounted accommodation at Cliff Cottage in Bang Bao.

Though BB and Scuba Dawgs seem to serve most of the Anglophone divers, you could also consider the smaller group dives offered by Koh Chang Divers, which appear to be good options if you seek a bit more personal attention from your instructor or guide. There’s also Dolphin Divers, a Swiss-run outfit that takes care of some of the older and wealthier divers up Haad Sai Khao way.

BB Divers: Several offices including at Bang Bao, Lonely Beach, Haad Sai Khao, Ko Mak and Ko Kut ; T: (039) 558 040 ; (086) 155 6212 ;
Dolphin Divers: Offices at Aana Resort in Khlong Prao and Koh Chang Lagoon Resort in Haad Sai Khao ; T: (039) 557 030 ; (086) 101 4783 ;
Koh Chang Divers: Bang Bao ; T: (097) 294 2234 ;
Scuba Dawgs: Bang Bao (offices at the pier and Cliff Cottage) ; T: (083) 469 6964 ; (081) 282 6071 ;


Book a flight, train, bus, taxi or ferry in Thailand with 12Go Asia

What next?

 Browse our independent reviews of places to stay in and around Ko Chang.
 Check prices, availability & reviews on Agoda or Booking
 Read up on where to eat on Ko Chang.
 Check out our listings of things to do in and around Ko Chang.
 Read up on how to get to Ko Chang, or book your transport online with 12Go Asia.
 Do you have travel insurance yet? If not, find out why you need it.
 Planning on riding a scooter in Ko Chang? Please read this.
 Buy a SIM card for Thailand—pick it up at the airport when you arrive.
 Browse the web securely while travelling with TunnelBear. Try with a 7–day free trial.

See below for more sights and activities in Ko Chang that are listed on

Top of page

Where to next?

Where are you planning on heading to after Ko Chang? Here are some spots commonly visited from here, or click here to see a full destination list for Thailand.

Top of page