Muri Lagoon Reef
Rarotonga, Cook Islands · Cook Islands
A calm, warm-water reef system inside Rarotonga's fringing lagoon with consistent visibility and no significant current, making it the best entry point for first-time divers on the island. Coral heads rise from a white-sand bottom between 5 and 15 metres, and the site hosts an unusually diverse array of reef fish for such a sheltered environment.
Conditions
Depth
3 to 15 m
Good for beginners
Current
Usually gentle
Can pick up on the edge
Visibility
15 to 25 m
Clearest in the calm season
Water
23 to 29°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 27 | 27 | 27 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 26 |
| Vis (m) | 10 | 10 | 10 | 10 | 12 | 12 | 15 | 15 | 15 | 15 | 12 | 10 |
| Current | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Picasso triggerfish
Last confirmed Mar 28, 2026 · 54 records
Almost always
Nearly every dive
Sunset Wrasse
Last confirmed Jan 28, 2026 · 66 records
Almost always
Nearly every dive
Threadfin Butterflyfish
Last confirmed Jan 25, 2026 · 49 records
Almost always
Nearly every dive
Convict Surgeonfish
Last confirmed Feb 2, 2026 · 66 records
Almost always
Nearly every dive
Blue Linckia
Last confirmed Jan 25, 2026 · 36 records
Very likely
Most dives
Threespot Wrasse
Last confirmed Jan 27, 2026 · 18 records
Very likely
Most dives
Bullethead parrotfish
Last confirmed Jan 26, 2026 · 5 records
Very likely
Most dives
Ornate butterflyfish
Last confirmed Oct 21, 2025 · 7 records
Very likely
Most dives
Gear