Sail Rock · Koh Samui & Ang Thong
6 species, most likely first·How chances work
Bigeye trevallyLeast Concern
Almost always
Nearly every dive
Chevron barracudaLeast Concern
Whale sharkEndangered
Likely
About half of dives
Batfish
Expected
Known here, not yet in recent logs
Giant grouperData Deficient
Moray eel
What the labels mean
