By Salah Teman · 5 August 2026
Crystal Rock sits close to Castle Rock in northern Komodo and the two are often dived on the same morning. The difference is visible from the boat: Crystal Rock breaks the surface, and its shallower profile means far more light reaching the coral.
Why it photographs well
The hard coral cover on the upper slopes is among the healthiest in the park, and because the top of the pinnacle sits shallow, colours hold up without artificial light. Visibility here is frequently the best of any northern site.
Current and technique
Like its neighbour, Crystal Rock is a current dive. The flow splits around the pinnacle, creating a calm pocket downstream where divers gather before working the edges. Reef sharks, trevally and large schools of fusiliers use the same structure.
Experience level
Advanced recommended. Divers comfortable at Crystal Rock are usually ready for Castle Rock.
Conditions
Water temperature in central and north Komodo runs 26–30°C, generally warm and calm. A 3mm long wetsuit is the most versatile choice; bring a 5mm or a neoprene hoodie if you feel the cold. The Komodo season is June to September, departing from Labuan Bajo. Open Water divers are limited to a maximum depth of 18m by law and insurance.
Diving it with Teman
The KLM Teman carries 12 guests in 5 ensuite cabins with a crew of 10, which keeps groups small on sites where spacing matters. This site features on our Komodo itineraries from 4 days upward.
More Komodo dive sites
See all itineraries and dates on our Komodo liveaboard page.
Salah writes for Teman Liveaboard, the owner-operator of the KLM Teman. The Teman is a 36-metre Indonesian phinisi, handbuilt in Sulawesi and launched in 2017, carrying 12 guests in 5 ensuite cabins with a permanent crew of 10 and a Cruise Director. The team behind her has more than 20 years sailing the Indonesian archipelago. The boat works Komodo National Park from June to September out of Labuan Bajo, Raja Ampat from November to April out of Sorong, and runs Banda Sea and Ring of Fire crossings between the two seasons. The dive site guides on this blog are written from the operator's own logs and itineraries, with conditions, seasons and equipment guidance checked against the dive team who work these sites every week. Where a detail depends on the day — depth on a given tide, or where a current will take you — we say so rather than guess, because that is a briefing the Cruise Director gives on the boat, not something a web page can promise.
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About the author
Salah Teman — Salah writes for Teman Liveaboard, the owner-operator of the KLM Teman. The Teman is a 36-metre Indonesian phinisi, handbuilt in Sulawesi and launched in 2017, carrying 12 guests in 5 ensuite cabins with a permanent crew of 10 and a Cruise Director. The team behind her has more than 20 years sailing the Indonesian archipelago. The boat works Komodo National Park from June to September out of Labuan Bajo, Raja Ampat from November to April out of Sorong, and runs Banda Sea and Ring of Fire crossings between the two seasons. The dive site guides on this blog are written from the operator's own logs and itineraries, with conditions, seasons and equipment guidance checked against the dive team who work these sites every week. Where a detail depends on the day — depth on a given tide, or where a current will take you — we say so rather than guess, because that is a briefing the Cruise Director gives on the boat, not something a web page can promise.
