Sharks
Galápagos Shark
Carcharhinus galapagensis · Cartilaginous fish — family Carcharhinidae
The Galápagos shark is what most people picture when they hear the word shark: three meters of gunmetal muscle, tall dorsal, blunt round snout, cruising a boulder slope in gin-clear island water. It belongs to the remote places — the same species patrols Wolf and Darwin, Bermuda's outer banks, and the Revillagigedo seamounts, one of the odd distributions in the shark world, stitched between far-flung islands with deep ocean in between. Encounters are steady rather than dramatic; the shark holds its line, takes your measure on a slow pass, and resumes its rounds as though you were furniture.
Where and when to see one
"Resident" means most dives at that destination encounter them; "seasonal" means reliably present in the listed months; anything else is a bonus, not a plan.
| Destination | Reliability | Months | Notes |
|---|---|---|---|
| Galápagos IslandsEcuador | Resident — seen on most dives | Year-round | |
| Socorro & the RevillagigedosMexico | Resident — seen on most dives | Year-round | |
| BermudaBermuda | Occasional | Year-round |
Best month, at a glance
| Month | Reliable destinations |
|---|---|
| January | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| February | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| March | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| April | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| May | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| June | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| July | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| August | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| September | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| October | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| November | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
| December | Galápagos Islands · Socorro & the Revillagigedos · Bermuda |
Understanding them
Habitat: Clear water around remote oceanic islands and seamounts — rocky drop-offs, boulder slopes, and adjacent blue water
Range: Scattered across the world's oceanic islands: the Galápagos and Revillagigedos, Hawaii, Bermuda, Lord Howe and the Kermadecs, Ascension, and similar isolated outposts
Behavior: A big, classically shark-shaped carcharhinid that patrols island walls in twos and threes, often shadowing divers with steady, wide circuits. Around bait or in packs it grows bold and pushy; on an ordinary wall dive it reads as confident but unhurried company.
Diet: Bottom fish, octopus, and squid, with larger animals taking rays and small sharks
Size: typically around 2.5 m; documented up to 3.7 m (total length).
How to behave around one
Stay off bait lines, keep the group together on blue-water exposures, and meet close passes with steady eye contact rather than retreat.
Conservation
Assessed Least Concern in aggregate, but individual island populations are small, isolated, and quick to deplete — several of its strongholds are large marine reserves for good reason.
Charted sites known for them
Watch
From the official channels
Best Places to Dive with Whale Sharks
Outrageously Tiny Fish
Sink or Swim? with Monét X Change | Monterey Bay Aquarium
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