Crystal Bay Nusa Penida
Bali · Indonesia
From August through October cold upwellings of the Lombok Strait draw ocean sunfish to Crystal Bay to be cleaned by bannerfish along the reef wall. Water temperature can drop to 18°C without warning and current can switch from slack to ferocious within minutes, demanding constant situational awareness. Outside sunfish season the bay holds excellent coral and large pelagic schools.
Conditions
Depth
5 to 40 m
Advanced depths
Current
Often strong
Can pick up on the edge
Visibility
15 to 30 m
Clearest in the calm season
Water
18 to 29°C
5mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 25 | 25 | 25 | 26 | 26 | 24 | 22 | 18 | 18 | 20 | 24 | 25 |
| Vis (m) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 12 | 12 |
| Current | Moderate | Moderate | Moderate | Moderate | Moderate | Strong | Strong | Strong | Strong | Strong | Moderate | Moderate |
Your chances of seeing each animal
Reef Manta Ray
Last confirmed Jun 25, 2026 · 122 records
Almost always
Nearly every dive
Hawksbill Sea Turtle
Last confirmed Jul 3, 2026 · 76 records
Almost always
Nearly every dive
Blacklip Butterflyfish
Last confirmed Jun 30, 2026 · 73 records
Almost always
Nearly every dive
Moorish Idol
Last confirmed Jun 30, 2026 · 60 records
Almost always
Nearly every dive
Pacific Trumpetfish
Last confirmed Jun 30, 2026 · 51 records
Almost always
Nearly every dive
Longfin bannerfish
Last confirmed Mar 3, 2026 · 5 records
Very likely
Most dives
White-tip reef shark
Last confirmed Jun 30, 2026 · 13 records
Very likely
Most dives
Ocean sunfish
Last confirmed May 15, 2026 · 27 records
Likely
About 6 in 10 dives
Gear