Shark
Silvertip shark
Carcharhinus albimarginatus
IUCN status: Vulnerable
A large requiem shark named for the white margins on its fins. At Cocos it is most reliably seen at the shallow Silverado cleaning station rather than on the deeper hammerhead seamounts. IUCN lists it as Vulnerable.
- Max size
- Up to about 3m
- Habitat
- Offshore reefs, seamounts and drop-offs, often around isolated islands
Best places to dive with Silvertip shark
rareoccasionalcommonly seenpeak season
Cocos Island
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Associated with a specific cleaning station (Silverado) south of Chatham Bay; not a general sighting across most Cocos dives. No strong seasonal pattern in the sources.
Sources & last checked
Checked July 2026
This is a researched draft, not yet human-verified. The seasonality and logistics are drawn from the sources below — confirm specifics (permits, fees, closures) with an operator before you book.
- A Guide to the Dive Sites of Cocos Island — Aqua-Firma
- Silvertip shark — Wikipedia