CULLONG 115 - Hoi An & Cu Lao Cham

Diving the *Cullong 115* is a real journey back in time, a sobering experience. This isn't a colourful reef dive, it’s a deep penetration into maritime history, lying at a profound 55m. The wreck itself, a large motor vessel, went down in 1986, and the years have turned its structure into an artificial reef, now draped in soft corals and sponges. We love the way schooling fusiliers blanket the deck, parting like a curtain as you approach, and the occasional lionfish that just hangs, perfectly still, in the silty gloom. Visibility can be a bit of a lottery here, but when it’s good, you can make out the scale of the ship, its holds yawning open, inviting exploration for those properly trained and equipped. Our favourite part has to be the stern, where the propeller still sits, an eerie, silent testament to its last voyage. This site is definitely for experienced wreck divers comfortable with deep profiles and limited natural light. We’d suggest a sidemount configuration for easier access into some of the tighter spaces, and definitely pack a good torch.

Location
Hoi An & Cu Lao Cham, Vietnam, Southeast Asia
Coordinates
17.000000, 107.583336
Type
wreck
Maximum Depth
55m

Marine Protected Area: Cồn Cỏ

Best Time to Dive in Hoi An & Cu Lao Cham

The warmest water temperatures in Hoi An & Cu Lao Cham occur in August, averaging 30.7°C. The coolest conditions are in January at 24.1°C.

Monthly Water Temperatures

  • January: 24.1°C
  • February: 24.3°C
  • March: 25.7°C
  • April: 27.0°C
  • May: 28.8°C
  • June: 30.3°C
  • July: 30.2°C
  • August: 30.7°C
  • September: 30.3°C
  • October: 29.2°C
  • November: 27.3°C
  • December: 25.4°C

Nearby Dive Sites in Hoi An & Cu Lao Cham

Nearest Dive Centres to CULLONG 115

Marine Life in Hoi An & Cu Lao Cham

Home to 41 recorded species including 28 reef fish, 7 sea snails & nudibranchs, 3 sharks & rays, 2 other, 1 crabs & lobsters.

Notable Species

Recommended Packing List for CULLONG 115

Based on average water temperature of 27.8°C, currents 8 cm/s.

  • Shorty or Rashguard - warm 28°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories