
Dinah's Beach
Milne Bay · Papua New Guinea
Black-sand muck dive on a gentle slope in Milne Bay, regarded as the birthplace of muck diving along with Lembeh. Mandarinfish display at dusk in the staghorn rubble, and rare nudibranchs are guaranteed. Easy bottom time and zero current.
Conditions
Depth
3 to 25 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
27 to 30°C
Tropical wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 |
| Vis (m) | 10 | 10 | 10 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 10 | 10 |
| Current | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still |
Your chances of seeing each animal
Mandarinfish
Last confirmed May 15, 2026 · 130 records
Almost always
Nearly every dive
Ghost pipefish
Last confirmed Mar 8, 2024 · 1 records
Sometimes
About 1 in 3 dives
Eightband Butterflyfish
Last confirmed Mar 8, 2024 · 1 records
Rare
Now and then
Colin'S Damsel
Last confirmed Mar 8, 2024 · 1 records
Rare
Now and then
Hairy frogfish
Expected
Known here, not yet in recent logs
Tryon'S Hypselodoris
Expected
Known here, not yet in recent logs
Lacy scorpionfish
Expected
Known here, not yet in recent logs
Milne Bay Damselfish
Expected
Known here, not yet in recent logs
Gear