Hon Tai (Cham Islands) – Hoi An Dive Site
Site Overview
Hon Tai is the flagship dive site of the Cu Lao Cham Marine Park near Hoi An, offering accessible coral garden diving at depths of 5 to 18 metres that showcases the remarkable recovery of Vietnam's central coast marine ecosystems. The site features extensive hard coral formations including staghorn and table acroporas that have flourished under the marine park's protection, creating a three-dimensional underwater landscape supporting diverse tropical fish communities. Butterflyfish are exceptionally abundant, with multiple species working the coral formations for food in constant activity. Moray eels occupy the numerous coral bommies and rocky crevices, while parrotfish graze on algae maintaining the coral health. Schools of anthias create clouds of colour above the reef, and juvenile fish shelter in the branching coral structures. The shallow depth profile and calm conditions make Hon Tai an ideal site for beginners and Open Water training dives, while the biodiversity ensures experienced divers remain engaged with the rich marine life. The marine park's conservation success story adds educational value to every dive, demonstrating how protection enables reef recovery and biodiversity restoration. Hon Tai serves as an outstanding introduction to Vietnamese diving combined with the extraordinary cultural experience of nearby Hoi An Ancient Town.
Dive Briefing
"Descend to the main reef area at approximately 10 metres and orient along the reef slope. Explore the coral bommies and sandy channels that characterise the site, swimming along the reef edge where fish diversity is highest. Butterflyfish patrol the coral formations while parrotfish graze on algae. Moray eels shelter in the coral bommies and rocky crevices throughout the site. The shallow sections at 5 to 8 metres feature the brightest coral growth ideal for the safety stop and snorkelling. Navigate along the main reef line following the island contour. Check isolated coral heads for juvenile fish, nudibranchs, and cryptic invertebrates. Conclude with a gradual ascent to the shallow reef for a safety stop at 5 metres before deploying your DSMB. Throughout the dive, maintain awareness of your depth and bottom time while enjoying the diverse marine life that inhabits this reef system. The topography provides excellent opportunities for both wide-angle and macro photography, with larger species visible in the blue water off the reef edge and smaller critters hidden among the coral formations and rocky crevices. Remember to complete your safety stop at five metres in the shallow reef zone where colourful anthias and butterflyfish provide excellent visual interest during the mandatory three-minute pause. Current conditions are typically manageable with proper planning, and the site rewards patient divers who take time to explore the various microhabitats scattered across the reef structure."
Signature Marine Life
Butterflyfish
Chaetodon sp.
Best: March, April, May
Moray Eel
Gymnothorax sp.
Best: March, April, May
Parrotfish
Scaridae sp.
Best: March, April, May
Staghorn Coral
Acropora sp.
Best: March, April, May
Anthias
Pseudanthias sp.
Best: March, April, May
Safety & Hazards
- Fire coral on shallow formations requiring careful hand placement during photography and exploration
- Variable visibility during typhoon season from October to January requiring conservative dive planning
- Boat traffic in the Cham Islands channel requiring DSMB deployment and ascent awareness
- Sea urchins on coral rubble requiring careful fin placement during shallow sections
- Strong UV exposure between dives requiring hydration management and sun protection
Traveler Notes
Who is this for?
Hon Tai is ideal for Open Water certified divers and beginners seeking their first Cham Islands diving experience. The gentle slopes, calm conditions, and abundant marine life create a rewarding environment for building confidence. The site also serves as an excellent snorkelling destination, perfect for combined diver and non-diver groups visiting Hoi An. Underwater photographers will find excellent wide-angle coral landscapes and macro subjects. This site is particularly rewarding for beginner divers who appreciate healthy coral ecosystems and diverse marine life encounters. Underwater photographers will find excellent subjects ranging from colourful reef fish to cryptic macro species hidden in the coral formations. The site also appeals to snorkellers in the shallower sections and non-diving companions who can enjoy the scenic coastal setting while divers explore the underwater world. Dive operators in the area provide professional guidance and equipment rental, making this an accessible and rewarding destination for both visiting international divers and local diving enthusiasts seeking quality underwater experiences.
Quick Stats
Dive Logistics
- Cham Islands Diving Center
- Hoi An Dive Center
- Blue Ocean Divers
Photography Info
Best for: reef, wide_angle, macro
Nearby Stay
Anantara Hoi An Resort
Hoi An • 3km away
Victoria Hoi An Resort
Hoi An • 4km away