Bida Nai

Ao Nang, Thailandwall30 m maxbeginner

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Conditions & tides

Bida NaiAo Nang · 30 m

Good · 5/5

conditions visualisation

Good5/5

Calm and diveable right now — best window today 7 AM–5 PM.

Wind12 kn WNW

Current~0 kn NW · model

Swell

0.3 m · 7s · WSW

Water

30 °C

Conditions through the day

6 AM6 PM

Calmest current near slack — 03:00 PM & 03:00 AM local

Sunrise 06:13 AM · Sunset 06:20 PM local

Show details

Tide · local

Outlook — select a day for full conditions

On-face swell 0.2 m — the component of the swell aimed at this site’s exposed face. Current is a regional model value (Copernicus, ~9 km grid) — a guide to the area, not a precise reef measurement. Imagery © Esri · not depth or visibility.

Scored by DiveConnect's site-physics model

Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.

Dived here today? How were conditions vs. what we showed?

About this site

Bida Nai sits near the Phi Phi islands off Ao Nang, on Thailand's Andaman Sea coast in Krabi province, offering a wall dropping to around 30 metres over a reef bottom. It's generally rated a beginner dive, with light current and great visibility making it an easy site to enjoy. Leopard and zebra sharks, nudibranchs, octopus, pufferfish, and whale sharks are regularly encountered here. Divers have also reported barracuda, clownfish, cuttlefish, fusiliers, ghost pipefish and ornate ghost pipefish, lionfish, manta rays, moray eels, parrotfish, pipefish, reef sharks, scorpionfish, sea turtles, seahorses, snapper, squid, stingrays, trevally, and wrasse around the wall.

AI overview

Marine life here

Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.

BarracudaBarracudaReported here · unconfirmed
Sea turtleSea turtleReported here · unconfirmed
StingrayStingrayReported here · unconfirmed
Reef sharkReef sharkReported here · unconfirmed
Moray eelMoray eelReported here · unconfirmed
CuttlefishCuttlefishReported here · unconfirmed
Ornate ghost pipefishOrnate ghost pipefishReported here · unconfirmed
Ocellaris AnemonefishAmphiprion ocellarisReported here · unconfirmed
Long-spined Crown-of-ThornsAcanthaster planciReported here · unconfirmed
Clark's AnemonefishAmphiprion clarkiiReported here · unconfirmed
Banded Sea UrchinEchinothrix calamarisReported here · unconfirmed
Blackspotted PufferArothron nigropunctatusReported here · unconfirmed
Magnificent Sea AnemoneRadianthus magnificaReported here · unconfirmed
Indo-Pacific Sergeant MajorAbudefduf vaigiensisReported here · unconfirmed
Swarthy ParrotfishScarus nigerReported here · unconfirmed
Moorish IdolZanclus cornutusReported here · unconfirmed
Leopard / zebra sharkLeopard / zebra sharkConfirmed present · 5 independent sources
NudibranchNudibranchConfirmed present · 3 independent sources
FusilierFusilierReported here · unconfirmed
Whale SharkRhincodon typusConfirmed present · 2 independent sources
OctopusOctopusConfirmed present · 2 independent sources
PufferfishPufferfishConfirmed present · 2 independent sources
SeahorseSeahorseReported here · unconfirmed
ScorpionfishScorpionfishReported here · unconfirmed
WrasseWrasseReported here · unconfirmed
ParrotfishParrotfishReported here · unconfirmed
Manta rayManta rayReported here · unconfirmed
TrevallyTrevallyReported here · unconfirmed
SquidSquidReported here · unconfirmed
Ghost pipefishGhost pipefishReported here · unconfirmed
ClownfishClownfishReported here · unconfirmed
LionfishLionfishReported here · unconfirmed
SnapperSnapperReported here · unconfirmed
PipefishPipefishReported here · unconfirmed