What Is Castle Rock Like as a Dive Site in Komodo?

Castle Rock: Komodo's Premier Pinnacle Dive

Castle Rock is one of the most thrilling dive sites in Komodo National Park and a highlight of any liveaboard itinerary or extended day trip to the northern zone. It is a fully submerged pinnacle in open water, rising to within 4 metres of the surface and dropping away to deep blue on all sides.

Site Profile

Marine Life Encounters

Castle Rock is Komodo's best site for pelagic and shark encounters:

• Grey reef sharks — bold, 2 to 2.5 metre individuals patrolling the pinnacle edges
• White-tip reef sharks — resting on ledges and under overhangs
• Giant trevally — hunting in powerful packs through baitfish clouds
• Bluefin trevally and barracuda — schooling in the blue around the pinnacle
• Eagle rays — occasional fly-bys
• Tuna, bonito, and mackerel — drawn by the current-concentrated prey
• Dense fusilier schools — clouds of silver fish swirling around the rock

The Dive Experience

Castle Rock demands a negative entry: you step off the boat and descend immediately to the reef without gathering on the surface. The current can be powerful enough to sweep unprepared divers past the pinnacle entirely. Once on the rock, you shelter in the lee side and work your way around as conditions allow, watching the parade of marine life in the blue water beyond the reef edge.

Tip: This is not a beginner site. Ensure you are comfortable with strong currents, negative entries, and SMB deployment before requesting Castle Rock. Your dive guide will assess whether conditions are suitable on the day.