
Crystal Rock
Komodo National Park · Indonesia
A current swept pinnacle in the far north of Komodo National Park, 300 m from Castle Rock, rising from open water to break the surface at low tide. A submerged spur falls away to a saddle near 20 m, its walls stacked with giant sea fans, barrel sponges, and soft coral in reds and orange. The water is famously clear, often well past 25 m, which is how the site earned its name. When the tide runs, grey reef and whitetip sharks hold in the flow on the up current side while clouds of fusiliers, snapper, and surgeonfish wrap the slopes and anthias swarm the shallows. Plate corals around 17 m shelter resting whitetip pups.
Conditions
Depth
5 to 30 m
Open water and up
Current
Often strong
Can pick up on the edge
Visibility
25 to 35 m
Clearest in the calm season
Water
24 to 29°C
Temperate wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 27 | 27 | 27 | 27 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 27 |
| Vis (m) | 18 | 18 | 20 | 25 | 25 | 25 | 25 | 25 | 25 | 20 | 20 | 18 |
| Current | Strong | Strong | Strong | Strong | Strong | Strong | Strong | Strong | Strong | Strong | Strong | Strong |
Your chances of seeing each animal
Grey reef shark
Last confirmed May 15, 2026 · 130 records
Almost always
Nearly every dive
Whitetip reef shark
Last confirmed Jun 21, 2026 · 33 records
Very likely
Most dives
Blacktip reef shark
Last confirmed Jun 20, 2026 · 39 records
Very likely
Most dives
Napoleon wrasse
Last confirmed Jun 29, 2026 · 31 records
Very likely
Most dives
Giant trevally
Last confirmed Jun 21, 2026 · 13 records
Very likely
Most dives
Dogtooth tuna
Last confirmed Oct 16, 2025 · 4 records
Sometimes
About 1 in 3 dives
Schooling fusiliers
Expected
Known here, not yet in recent logs
Gear
Basic kit
For this site