Papua New Guinea · New Britain

Kimbe Bay

The drier season is typically preferred for reefs, wide angle and easier travel.

Kimbe Bay on PNG's New Britain island is one of the planet's biodiversity hotspots — over 850 reef fish species recorded, healthy coral, and almost no other divers. Walindi Plantation Resort and a couple of liveaboards serve the bay.

Good season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

April–December is best. January–March has occasional rain and reduced viz.

Trip duration

7-night land-based or liveaboard.

Dive style

Reef and pinnacle diving with mild-to-moderate current.

Dive level

Open Water; Advanced for deeper pinnacles.

Reef health

What you’ll actually find
Holding steady

One of the few reefs whose live coral has held up over the last decade. Plan with confidence.

Heat stress right now

Watch

Mild warmth. Worth watching — no bleaching yet.

NOAA Coral Reef Watch · updated May 2026 · 0 °C-week heat dose

What to expect on a dive

Walindi-area reefs remain among the world's most biodiverse. Coral cover is high and stable.

Sources, methodology, and the raw numbers

Raw observed numbers

  • Coral cover: 50% (survey Sep 2024, Reef Check Indonesia/Malaysia/Philippines survey)
  • Bleached: 5%
  • Recent mortality: 1%
  • Coral Triangle — observed condition reflects the stable regional pattern.

Raw thermal numbers

  • NOAA CRW alert level: Watch
  • Degree Heating Weeks: 0 °C-wk
  • SST anomaly: +0.6 °C

How we summarise this

Observed coral cover, bleaching, and mortality come from named in-situ surveys with a stated date and method — they describe one snapshot of one reef and do not extrapolate to neighbouring sites. Current thermal stress is satellite-derived from NOAA Coral Reef Watch at ~5 km resolution; it indicates risk, not observed coral damage. We deliberately separate observed condition, current thermal stress, and projection — and we never publish a projection without a documented model and uncertainty.

Sources

Reef condition changes year to year. If you visit, consider supporting responsible-travel and conservation operators on the ground.

Pressure on this reef

Protection · fishing · what you can do

Protected-area status

Multi-use MPA

Inside a designated MPA that permits regulated fishing and other uses. Worth checking which zones at this location are no-take.

Fishing pressure

Low fishing pressure

Dominant pressures

  • small-scale subsistence fishing
  • limited infrastructure
  • logging runoff

1 Green Fins-verified operator known at this location.

What you can do

Mahonia Na Dari (Walindi area) runs research and education partnerships locally. PNG reef country has the lowest dive-tourism footprint on Earth. Customary tenure means village fees go directly to landowners — pay them.

Protection status sourced from Protected Planet / WDPA and refined with Marine Protection Atlas. Fishing pressure proxy is Global Fishing Watch AIS data. See the methodology for what these sources can and can’t prove.

Dive sites here

2 curated

Gear

What to bring

Basic kit

Site-specific add-ons

Some dive sites here call for extra gear. Check the individual site page for full context.

  • Reef hookPlateau is exposed; hooking in beats fighting current. · Bradford Shoals
  • SMBOpen-water surfacing standard. · Bradford Shoals

What divers say

Coral biodiversity that makes Indonesia look thin. PNG is the secret nobody talks about.
Marine biologist