Bida Nok
Koh Phi Phi · Thailand
The larger of the two uninhabited Bida islets south of Phi Phi Le. A near-vertical wall on the west side drops from 3 m to beyond 30 m, encrusted with sea fans, barrel sponges, and black coral. Leopard sharks park on the sandy ledges at 18 to 22 m throughout the year. Strong upwellings on the southwest corner attract bumphead parrotfish and occasional whale sharks during the March to April window.
Conditions
Depth
3 to 35 m
Advanced depths
Current
Often strong
Can pick up on the edge
Visibility
5 to 12 m
Clearest in the calm season
Water
26 to 30°C
3mm wetsuit
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