Independent dive directory page listing Planet Rock as a nearby site from Niugini Dive Adventures.
Current-swept seamount off Madang for experienced divers.
Current-swept seamount off Madang for experienced divers.
Planet Rock is normally reached on a guided Madang boat dive with operator-managed timing and conditions.
Planet Rock is a current-swept offshore seamount off Madang with steep relief, hard-coral structure and regular big-fish action. It suits experienced divers using a local operator and careful timing.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
4m - 600m
Depth Note
The seamount rises from roughly 600 m to a shallow apex around 4-5 m.
Typical Conditions
Exposed open-ocean conditions with strong currents, clear water and active pelagics; the site can be skipped when the flow is too strong.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Strong current is the main hazard. Keep the team tight, watch turn points, and treat the site as a current-managed offshore dive.
Access Restrictions
Boat access only, with conditions and current windows determining whether the site is run.
Community notes to help plan your visit.
Scuba Diving
Best suited to experienced scuba divers who are comfortable with current and blue-water conditions.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Independent dive directory page listing Planet Rock as a nearby site from Niugini Dive Adventures.
Independent editorial describing Planet Rock as rising from 600 m to 5 m with hard corals and sharks.
Tourism page describing Planet Rock as an offshore seamount with strong currents and shark and pelagic life.
Official operator page confirming Madang Resort base, charter boats and nearby offshore diving support.
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