Lists manta rays, eagle rays, and whale sharks at Racha Noi, with a 5-30m depth range and weak-to-moderate current.
Boat-access Racha Noi bay known for seasonal mantas.
Boat-access Racha Noi bay known for seasonal mantas.
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Boat logistics and current management make local guide support the normal way to dive the site.
Manta Bay Racha Noi is a boat-access granite-boulder and coral site east of Phuket where the reef rises from a bright sandy bottom into a broad scenic bay. The site is known for manta-ray encounters in season, plus eagle rays, whale sharks, and a mix of reef fish around the boulders and coral-covered edges.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
5m - 25m
Depth Note
Published guides commonly place the bay around 5-25m, with visibility and current varying by the day's conditions.
Best Season
December to April is the manta season; calmer dry-season days are usually the easiest overall.
Typical Conditions
Generally mild to moderate currents with strong visibility potential in the dry season and seasonal manta action.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Treat the site as a current-aware reef dive and keep buoyancy tight around the boulders and coral edges.
Access Restrictions
Boat access from Phuket is normal, and the dive should be timed to the day's current window and manta season.
Legal Notes
Follow guide briefing, respect local marine-park rules, and keep clear of wildlife interactions.
Community notes to help plan your visit.
Scuba Diving
Scuba reef dive with granite boulders, hard corals, and chances for pelagic encounters.
Freediving
Not a freedive-first site; the current-aware boat dive setup makes it primarily a scuba dive.
Snorkeling
Not a casual snorkel site; the main action is below the surface and often along the current line.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Lists manta rays, eagle rays, and whale sharks at Racha Noi, with a 5-30m depth range and weak-to-moderate current.
Describes Racha Noi Bay with 15-30m visibility, mild/moderate current, manta rays, eagle rays, leopard sharks, and dense soft and hard coral.
Describes Racha Noi as a visibility-rich granite-boulder site that attracts manta rays, whale sharks, and spotted eagle rays.
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Racha Noi reef with shallow bay and coral blocks

Strong-current Racha Noi drift dive with manta chances.

Offshore Racha Noi wall with manta potential.

Sheltered Racha Noi bay with clear water, hard coral, and photo-friendly dives.

Racha Noi is a Phuket boat-dived island known for manta rays.

Banana Rock is a boat-access Racha Noi dive with fish schools and drift options.