HMNZS Moa (Wreck) - Iron Bottom Sound

Lou’s Reef, for us, is one of those Sydney sites that constantly delivers, even on an average day. We’ve had dives here where the visibility was a murky 5 metres, yet the sheer volume of fish still made it worthwhile. It’s a rocky reef, dropping to around 24 metres, but it’s the smaller details that really make it special. Look closely and you’ll find a surprising amount of invertebrate life: those intricate sea spiders crawling over sponges, and vibrant sea tulips swaying gently in the surge. The current, which can sometimes be a bit of a push, is exactly what feeds the place, drawing in schools of yellowtail scad and trevally. Our favourite encounters often involve the smaller, rarer stuff-we’ve spotted Carnelian Cowries here that are just stunning. It’s a site that rewards patience and a good torch, perfect for divers who appreciate the subtle beauty of temperate reefs rather than just big pelagics.

Location
Iron Bottom Sound, Solomon Islands, Central & South Pacific
Coordinates
-9.091500, 160.147700
Type
reef
Maximum Depth
15-30m

Marine Protected Area: Tulagi Island

Best Time to Dive in Iron Bottom Sound

The warmest water temperatures in Iron Bottom Sound occur in January, averaging 30.5°C. The coolest conditions are in December at 30.5°C.

Monthly Water Temperatures

  • January: 30.5°C (air: 26.9°C)
  • February: 30.5°C (air: 26.7°C)
  • March: 30.5°C (air: 26.7°C)
  • April: 30.5°C (air: 26.8°C)
  • May: 30.5°C (air: 26.9°C)
  • June: 30.5°C (air: 26.5°C)
  • July: 30.5°C (air: 26.5°C)
  • August: 30.5°C (air: 26.3°C)
  • September: 30.5°C (air: 26.5°C)
  • October: 30.5°C (air: 26.7°C)
  • November: 30.5°C (air: 26.7°C)
  • December: 30.5°C (air: 26.9°C)

Nearby Dive Sites in Iron Bottom Sound

Nearest Dive Centres to HMNZS Moa (Wreck)

Marine Life in Iron Bottom Sound

Home to 415 recorded species including 320 reef fish, 29 hard corals, 18 sea snails & nudibranchs, 16 sea cucumbers, 7 seagrass & algae, 5 clams & mussels.

Notable Species

Recommended Packing List for HMNZS Moa (Wreck)

Based on average water temperature of 30.5°C.

  • Shorty or Rashguard - warm 30°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

Frequently Asked Questions

How deep is the HMNZS Moa wreck dive site?
The HMNZS Moa wreck offers a dive experience with depths ranging from 15 to 30 meters. The maximum depth recorded for this site is 35 meters. Divers should be comfortable with these depths to fully explore this historic WWII minesweeper.
What marine life and wreck features can divers expect to see on the HMNZS Moa?
Divers exploring the HMNZS Moa wreck, a WWII NZ Navy Minesweeper, can expect to encounter a vibrant array of marine life. Schools of juvenile trevally, mangrove Jacks, and batfish frequently inhabit the wreck. Additionally, you'll find lots of Lionfish throughout this fascinating artificial reef. For more information on marine species, visit our wildlife database.
What is the difficulty level for diving the HMNZS Moa wreck?
The HMNZS Moa wreck is rated as an intermediate difficulty dive. This classification is partly due to the challenging visibility often experienced in Tulagi Harbour, which averages around 8 meters because of local estuaries and mudflats. Divers should have experience with such conditions.
What is the best time of year to dive the HMNZS Moa wreck for optimal conditions?
The provided data does not specify the best time of year for optimal diving conditions at the HMNZS Moa wreck. We recommend checking our When to Dive section for general seasonal information regarding the Solomon Islands.
What scuba diving certifications are required to dive the HMNZS Moa wreck?
The specific scuba diving certifications required to dive the HMNZS Moa wreck are not detailed in the provided information. Given its intermediate difficulty and depths up to 35m, an Advanced Open Water certification or equivalent is generally recommended for such dives.
What are the typical visibility and current conditions at the HMNZS Moa dive site?
At the HMNZS Moa dive site, typical visibility averages around 8 meters. This can be challenging due to the local estuaries and mudflats within Tulagi Harbour. Information regarding specific current conditions for this site is not provided in the available data.