Dos Amigos Grande

One of a pair of islets west of Cocos; the arch is big enough for a whole group to swim through, often ringed with schooling fish.

Depth

15–40m

Current

Strong

Diver level

Advanced open water

Entry

Boat

Unique features

Large underwater arch at around 30m
Scalloped hammerheads, marble rays and occasional whale sharks

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
Best Dive Sites of Cocos Island — ZuBlu

Note on the data: Coordinates are approximate; not surveyed dive-site GPS.