Species FishBasking Shark

Basking Shark

Cetorhinus maximus

RareFish
Illustration of Basking Shark (Cetorhinus maximus)
Safety note: Harmless to people despite its size; observe without crowding.

The second-largest fish in the world and another gentle giant. It swims near the surface with its enormous mouth agape, filtering plankton through comb-like gill rakers, and is often seen basking in cool water in summer.

Habitat
Cool temperate seas, often near the surface along both US coasts.
Diet
Zooplankton filtered from the water while swimming.
How common
Rare

Best time to see a Basking Shark

The best time to see a Basking Shark is April–June, when about 63% of U.S. sightings happen, based on 72 research-grade iNaturalist observations.

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Recent Basking Shark sightings near you

Live, research-grade observations from iNaturalist. Allow location to center the map on you.

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