Sail Rock · Koh Tao
7 species, most likely first·How chances work
Greater Racket-Tailed DrongoLeast Concern
Almost always
Nearly every dive
Calotes thailandensis
Fluted Giant ClamLeast Concern
Likely
About half of dives
Whale sharkEndangered
Pink anemonefishLeast Concern
Bigeye trevallyLeast Concern
Schooling chevron barracuda
Expected
Known here, not yet in recent logs
What the labels mean
