How to spot the Octopus when scuba diving

Octopus

Found in tropical, subtropical, and temperate waters worldwide. Specifically mentioned ranges include the Eastern Atlantic (Mediterranean, UK coast to South Africa), Western Atlantic. Other octopus species have different specific ranges.

When to spot

Often nocturnal or crepuscular (active at dawn/dusk). Night dives significantly increase chances of seeing them out hunting. Can be seen year-round, seasonality less of a factor than time of day.

Water

Wide tolerance depending on the specific region within temperate to tropical zones.

How to spot

Look in crevices, under rocks, inside empty shells or discarded human debris (jars, tires) on reefs or rubble/sandy bottoms. They are masters of camouflage; look for unusual shapes or textures, or discarded shells from their meals (crab shells often indicate a den nearby). Move slowly and avoid bright lights directly in their eyes.

Worldwide observation of the Octopus

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Data sources

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