Koh Bida Nai

# Koh Bida Nai Dive Site

Koh Bida Nai, located near Koh Phi Phi in Krabi’s Andaman Sea, is a premier diving destination featuring dramatic limestone pinnacles and underwater rock formations. This intermediate to advanced site reaches depths of 5-40 meters, attracting experienced divers seeking vibrant marine biodiversity.

Divers encounter colorful coral gardens, including hard corals and sea fans adorning the rocky structures. The site teems with tropical fish species, sweetlips, snappers, and occasional larger pelagics like reef sharks and barracudas. Macro photography enthusiasts spot nudibranchs, crustaceans, and small reef fish among coral crevices.

Strong currents are common, requiring solid diving skills and proper buoyancy control. Visibility typically ranges from 10-25 meters, depending on seasonal conditions. The site offers both wall and pinnacle diving experiences, with multiple entry points catering to different experience levels.

Best dived during the dry season (November to April), Koh Bida Nai combines geological drama with rich marine life, making it an essential Andaman Sea dive experience for intermediate to advanced divers.

🐠 Marine Life at This Dive Site

Blue-spotted Cornetfish Fistularia commersonii bencostamagna

Ocellaris Anemonefish Amphiprion ocellaris donalddavesne

Red-tailed Butterflyfish Chaetodon collare donalddavesne

Giant thorny oyster Spondylus varius donalddavesne

Snowflake Moray Echidna nebulosa marekkoszorek

Lined Wrasse Anampses lineatus donalddavesne

Species data from iNaturalist (CC BY-NC)