Scuba Season
Underwater reef at Milne Bay
Improving

Milne Bay

Papua New Guinea · Coral Sea

Milne Bay at PNG's eastern tip is muck diving paradise — black sand bottoms hosting rare critters, plus the wreck of the Pacific Gas (a Japanese WWII tanker) and healthy reefs further out. Featured in Bob Halstead's early muck diving books.

How this reef is doing

How we measure this

Reef state

Improving

One of the most species rich reef regions on Earth. Remote, low diver pressure, intact reef structure.

Coral cover

50%
LowHealthy
Healthy

Fish life

Not surveyed

Heat

SafeBleaching

No unusual heat right now.

Safe now

Fishing

QuietBusy

Some fishing is allowed here, in marked zones.

Limited

Sources · MERMAID and partner coral surveys · NOAA Coral Reef Watch · Global Fishing Watch and reef gravity

What you will see

20 species across the dive sites here

Dive sites

What divers say

Bob Halstead literally invented muck diving here. The critters are still showing up.
Muck diver

Good to know

Malaria

Prophylaxis essential.

Gear & getting wet

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 3mm full wetsuit · warm water
    • Dive computer
  • For specific sites

    • Macro light · Dinah's Beach
    • Reef hook · Black Magic
    • Trimix and stage tanks · B-17F Black Jack
    • Dive light · B-17F Black Jack