Dive-site story
The Bida Islands—comprising Koh Bida Nok and Koh Bida Nai—form the southernmost tip of the Phi Phi archipelago. Sheer limestone cliffs plunge beneath the surface into extensive boulder labyrinths, vertical walls draped in soft corals, and sloping coral gardens. Divers regularly encounter cruising blacktip reef sharks in the shallow bays, while leopard sharks rest on the deeper sandy stretches bordering the reefs.
Cruising blacktip reef sharks patrolling the shallow bays and reefs
Leopard sharks resting on the outlying sand channels
Limestone swim-throughs and boulder topography coated in colorful soft corals
Large schools of trevally and chevron barracuda hunting in the blue
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
The northeast monsoon brings dry days, calmer sea conditions, and prime visibility across the Andaman Sea.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blacktip Reef SharkCarcharhinus melanopterus | Common | ||||||||||||
| Indo-Pacific Leopard SharkStegostoma tigrinum | Common | ||||||||||||
| Hawksbill Sea TurtleEretmochelys imbricata | Common | ||||||||||||
| Chevron BarracudaSphyraena qenie | Common | ||||||||||||
| Banded Sea KraitLaticauda colubrina | Common |
Marine forecast
