Where can I dive with manta rays?

The most reliable manta destinations are Ishigaki in Japan, Hanifaru Bay in the Maldives, the Kona Coast in Hawaii, and Nusa Penida in Bali. Each has a different season, listed on this page.

When is manta ray season?

It depends entirely on the destination — mantas follow plankton, so the season tracks local currents. Kona has resident mantas year-round, Ishigaki peaks May–October, and Hanifaru Bay peaks August–October.

Are manta rays dangerous to divers?

No. Manta rays are filter feeders with no stinging barb — unlike the stingrays they are often confused with — and they have no interest in people. The main risk is to the animal: crowding or touching one does real harm.

Animal profile

Where to see manta rays

Mobula alfredi & Mobula birostris

Shy~1 in 10 dives

Regular, but it has to want to be seen. Odds on a typical dive within its range — the right place and season are what beat them, which is what the destinations below are for.

Reef manta Vulnerable; oceanic manta Endangered

A reef manta ray seen from below, its pale underside marked with the dark spot pattern that identifies each individual, gliding over a Maldivian cleaning station. — Manta Ray, photographed at Fushivaru Thila, Maldives. Photo by asands from London, UK · CC BY-SA 2.0

Manta rays are the largest rays in the ocean. The reef manta (Mobula alfredi) reaches about 3–4 meters across and stays close to coastal reefs, while the oceanic manta (Mobula birostris) can span 7 meters and roams the open blue. Both are filter feeders — harmless to divers — and both return, often for years, to the same cleaning stations and feeding channels. That fidelity to a handful of sites is exactly why manta diving is so reliable when you go to the right place at the right time.

Size

Wingspan 3 m–7 m typically 4 m drawn against a 2 m diver Silhouette Mobula alfredi by M Kolmann (CC0 1.0), via PhyloPic

The short version

Small groups
a handful in the same spot
Diet
Plankton (filter feeder)
Risk to youHarmless
No teeth to speak of and no barb — a filter feeder that ignores divers.
Risk from us
gill-plate trade, entanglement, boat strike, touching — the last one is the part you control.

Planning the encounter

Depth

10–25 m

Recorded between 5 m and 30 m

Night diving

Also seen on night dives

Odds through the day

Dawn
possible
Day
likely
Dusk
possible
Night
possible

Cleaning-station visits run through daylight. Kona is the exception that proves the rule — its manta dive is at night, over lights that concentrate plankton.