Sugar Wreck (MV Union Altis) – Perhentian Islands (Terengganu) Dive Site
Site Overview
The Sugar Wreck, officially the MV Union Altis, is a 60-meter freighter that was deliberately sunk in 2001 and has since become one of the most popular wreck dive sites on Malaysia's East Coast. Sitting at a maximum depth of 18 meters on a sandy bottom, the wreck has been completely colonized by dense marine growth including soft corals, barnacles, and oysters that have transformed the steel hull into a thriving artificial reef. The wreck's most iconic residents are the massive giant groupers that patrol the deck and cargo holds, often approaching divers with curious indifference. Dense schools of glassfish fill the interior spaces, creating shimmering curtains of silver that part as divers swim through the open cargo areas. Giant morays occupy the darker recesses while lionfish perch on every available ledge. The wreck's accessible depth, calm conditions, and extraordinary fish life make it suitable for intermediate divers while providing excellent photographic opportunities. The open deck areas are safe for limited exploration without penetration certification, while the interior holds offer exciting adventures for qualified wreck divers. The wreck continues to evolve each year as marine colonization progresses, with new species establishing territory and the structure becoming increasingly integrated into the surrounding reef ecosystem.
Dive Briefing
"The dive begins with descent onto the wreck's highest point at approximately 6 meters where the mast and superstructure are clearly visible. After orienting on the wreck structure, divers should swim along the deck exploring the open cargo holds and deck equipment while maintaining careful buoyancy to avoid contact with the coral-encrusted surfaces. The most productive area is the main cargo hold where giant groupers shelter and glassfish school in dense formations. Navigate along the port side to observe the propeller and rudder assembly at the stern before returning along the starboard side. Monitor your depth carefully as the deepest sections reach 18 meters on the surrounding sand. Check the overhangs and ledges for morays and lionfish throughout the dive. Maintain buddy contact at all times and communicate regularly using standard hand signals. Complete your safety stop at 5 meters above the wreck structure deploying your DSMB before surfacing near the dive boat."
Signature Marine Life
Giant Grouper
Epinephelus lanceolatus
Best: March, April, May
Glassfish
Ambassis sp.
Best: March, April, May
Moray Eel
Gymnothorax sp.
Best: March, April, May
Lionfish
Pterois volitans
Best: March, April, May
Barracuda
Sphyraena barracuda
Best: March, April, May
Safety & Hazards
- Sharp corroded metal edges on wreck superstructure requiring careful finning
- Fishing line entanglement risk on exposed wreck sections
- Boat traffic requiring SMB deployment for safe ascent
- Variable visibility after heavy rainfall
- Limited penetration hazards requiring wreck certification
Traveler Notes
Who is this for?
Sugar Wreck is ideal for Advanced Open Water certified divers seeking an accessible wreck diving experience with abundant marine life encounters throughout the year. The moderate depth of 18 meters and generally calm conditions make it suitable for divers with some wreck diving experience. Underwater photographers will find outstanding opportunities with the glassfish schools, giant groupers, and dramatic wreck structure throughout the dive. The site rewards both wide-angle and macro photography approaches, with different subjects at every turn of the wreck.
For Non-Divers
Non-divers can enjoy the pristine beaches of the Perhentian Islands, snorkeling on the house reef, jungle trekking between beaches, and kayaking along the coastline.
Quick Stats
Dive Logistics
- Quiver Dive Team
- Panorama Divers
- Pro Divers
Photography Info
Best for: wide_angle, macro
Nearby Stay
Perhentian Island Resort
Perhentian Besar • 3km away
Coral View Island Resort
Perhentian Besar • 3km away