Question 1

What marine life can I see diving in Koh Chang?

Accepted Answer

Koh Chang's waters host incredible marine biodiversity: sea turtles, bamboo sharks, moray eels, lionfish, scorpionfish, octopus, cuttlefish, and large schools of barracuda, trevally, and snappers. At wreck sites like HTMS Chang, you'll find batfish, groupers, and massive schools of fish. Macro enthusiasts love our nudibranchs, ghost pipefishes, and ornate ghost pipefishes. Reef sites feature angelfish, butterflyfish, triggerfish, and colorful soft corals.

Question 2

Does Koh Chang offer wreck dives?

Accepted Answer

Yes! Koh Chang is famous for wreck diving. The HTMS Chang is Thailand's biggest wreck – a 100-meter navy frigate at 31m depth with intact structure and swim-throughs. We also have the T11 Wreck (20m), Phutthayotfa Wreck (40m), and Koho Maru 5 (43m) – a Japanese WWII freighter. All wrecks are artificial reefs teeming with marine life. Wreck diving is available year-round for certified divers.

Question 3

What is the best time to dive in Koh Chang?

Accepted Answer

The best diving season is November to April (high season) with calm seas, excellent visibility (15-25m), and water temperatures 27-29°C. March and April offer the clearest water. May to October is monsoon season with rougher conditions, but diving is still possible with reduced visibility (8-15m) and lower prices. The HTMS Chang wreck is diveable year-round. We operate daily trips throughout the year.

Question 4

Do I need experience to scuba dive in Koh Chang?

Accepted Answer

No experience needed! Complete beginners can start with a Try Dive – a supervised introduction to scuba diving in shallow water (max 12m). If you want certification, our 3-day Open Water course gets you qualified to dive worldwide. Already certified? Join our Fun Dive trips to explore reefs and wrecks. We cater to all levels from first-timers to technical divers.

Question 5

How many dive sites are around Koh Chang?

Accepted Answer

Koh Chang has 13 main dive sites within 30-60 minutes by boat. This includes 4 wreck sites (HTMS Chang, T11, Phutthayotfa, Koho Maru 5) and 9 reef sites ranging from shallow beginner-friendly reefs (10-18m) to advanced pinnacles and walls (25m+). Popular sites include Koh Rang Pinnacle, Hin Raab, Blueberry Hill, and the Hin sites. Each site offers unique topography and marine life.

Question 6

Is Koh Chang good for beginner divers?

Accepted Answer

Absolutely! Koh Chang is perfect for beginners. We have multiple shallow reef sites (10-15m) with calm conditions, gentle currents, and rich marine life. Sites like Hin Pray Nam, Hin Rua Tek, and Hin Sam Sao are ideal training locations. Small group sizes (max 4 divers per instructor) ensure personal attention. Many dive centers offer courses in multiple languages. The warm water (27-29°C) and good visibility make learning comfortable.

Question 7

How deep are the dive sites in Koh Chang?

Accepted Answer

Dive depths vary by site and certification level. Beginner sites: 10-18 meters (Hin Pray Nam, Hin Rua Tek, Hin Sam Sao). Intermediate sites: 18-25 meters (Blueberry Hill, Secret Reef, Hin Raab). Advanced sites: 25-43 meters (Koh Rang Pinnacle 25m, HTMS Chang 31m, Koho Maru 5 43m). Try Dives stay at 6-12 meters. Open Water divers can dive to 18m, Advanced divers to 30m+.

Question 8

What makes Koh Chang special for diving?

Accepted Answer

Koh Chang offers Thailand's biggest wreck dive (HTMS Chang), uncrowded dive sites, diverse marine life, and sites for all levels – all within a pristine national marine park. Unlike busier destinations, you'll dive in small groups at sites with minimal boat traffic. The combination of dramatic wreck dives, colorful reef walls, and intact coral gardens in warm, clear water makes Koh Chang a hidden gem. Plus, it's easily accessible from Bangkok (5-6 hours).

Question 9

How far are the dive sites from Koh Chang?

Accepted Answer

Most dive sites are 20-45 minutes by boat from Koh Chang's west coast. Closer sites (Hin Pray Nam, Hin Rua Tek) take 20-30 minutes. Mid-range sites (Blueberry Hill, Secret Reef) are 30-40 minutes. The HTMS Chang wreck and Koh Rang sites are 40-60 minutes. All trips depart from Bang Bao Pier. Boats are spacious with shade, toilets, and refreshments. Surface intervals are spent at scenic islands or aboard.

Question 10

What is the water visibility like in Koh Chang?

Accepted Answer

Visibility varies by season and location. High season (November-April): 15-25 meters, with March-April offering the clearest conditions (20-25m+). Low season (May-October): 8-15 meters due to plankton and runoff. Wreck sites generally have better visibility than shallow reefs. Koh Rang sites (national park) consistently offer the best clarity. Water temperature stays 27-29°C year-round, making diving comfortable in 3mm wetsuits.

Scuba Diving Koh Chang – Thailand