
Henry Leith Wreck
Madang · Papua New Guinea
The Henry Leith is a small coastal freighter that sank in Madang Harbour and now rests upright on a sandy floor at around 18 metres. The wreck is completely encrusted with soft corals and sponges, making it as much a reef as a shipwreck. Lionfish hover in doorways, schools of glassfish fill the holds, and nudibranch hunters will find dozens of species on a single dive. The shallow, calm conditions make this an ideal night dive — torchlight brings out pygmy cuttlefish, bobbit worms and an extraordinary variety of flatworms.
Conditions
Depth
5 to 22 m
Open water and up
Current
Usually still
Can pick up on the edge
Visibility
15 to 25 m
Clearest in the calm season
Water
26 to 30°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 28 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 27 | 27 | 28 | 28 |
| Vis (m) | 10 | 10 | 12 | 12 | 15 | 15 | 15 | 15 | 12 | 12 | 10 | 10 |
| Current | Gentle | Gentle | Still | Still | Still | Still | Still | Still | Still | Still | Gentle | Gentle |
Your chances of seeing each animal
Lionfish
Last confirmed Nov 14, 2025 · 2 records
Likely
About 6 in 10 dives
Glassfish
Expected
Known here, not yet in recent logs
Chromodoris Nudibranch
Expected
Known here, not yet in recent logs
Bobbit Worm
Expected
Known here, not yet in recent logs
Soft Coral
Expected
Known here, not yet in recent logs
Encrusting Sponge
Expected
Known here, not yet in recent logs
Flatworm
Expected
Known here, not yet in recent logs
Pygmy Cuttlefish
Expected
Known here, not yet in recent logs
Gear