Dirty Rock
Also known as: Roca Sucia
Best time to dive
January to December; June to December; December to May
What you might see
- DolphinLikely
- Eagle rayPossible
- Grey reef sharkLikely
- Hammerhead sharkLikely
- Sea turtleLikely
- Whale sharkPossible
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Advanced Open Water - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - Not offered - liveaboard scuba-only site
Safety notes
Surge in the channel, high volume of shark/ray traffic requiring careful buoyancy, remote location, thermoclines
Permits & fees
Cocos Island National Park fee (~$50, bundled into liveaboard package); liveaboard-only access, no independent diving permitted
Permits and operators change - confirm before booking.
Location
Nearest hub: Chatham Bay
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.