Three guided dives from Koh Chang take you to the HTMS Chang wreck and coral gardens of Koh Rang National Park. This full-day trip includes equipment, lunch, and hotel pickup—ideal for certified divers seeking wrecks and vibrant reef life.
More ways to explore the area's outdoor wonders
You push off Koh Chang’s pier before sunrise and the Gulf of Thailand opens up like a blue highway. The wooden dive boat hums, the crew rigs tanks and checks weights, and the air tastes faintly of diesel and salt. By the first descent you’re gliding past the HTMS Chang—an intentional wreck that now houses swaying soft corals and schools of snapper—then through wide bands of reef where parrotfish and anemones dart between coral bommies.
Difficulty
moderate
Duration
8 hours
Fitness Level
Light to moderate fitness; comfortable swimming ability and basic breath control for multiple dives are recommended
Wildlife
History
The HTMS Chang is a decommissioned naval vessel sunk as an artificial reef to create dive habitat; nearby islets in Koh Rang were later designated a national park to protect reefs.
Conservation
Koh Rang National Park restricts anchoring and fishing in key zones—use mooring buoys and avoid touching coral to reduce impact.
Reserve your spot on the Koh Chang Dive Trip Including 3 Dives (Start at Koh Chang) today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring your dive certification and logbook
Operators require proof of certification for all certified-diver trips; bring a filled logbook or proof of recent dives if requested.
Dress for sun and spray
Light, quick-dry layers and reef-safe sunscreen protect you while on deck between dives.
Plan for motion and comfort
If you’re prone to seasickness, take antiemetics before boarding and sit mid-boat where motion is steadier.
Respect the reef
Avoid touching or standing on coral and give marine life space—photograph with care and don’t feed wildlife.
Certification card & logbook
Required proof of qualification and useful for guides reviewing your experience level
Shorty or 3mm wetsuit
Provides thermal comfort and protection in cooler months or lengthy surface intervals
winter
Dive computer or timing device
Helps manage no-decompression limits across three daily dives
Reef-safe sunscreen and hat
Protects skin on deck without harming marine ecosystems
summer