The guide said they eat cooked food, and no one has been eaten by them. So we decided to swim up there, and they were only 1-2 meters below. But the moment we had to snorkel in the water, the guide said, " Keep your bodies horizontal ! " And I knew that was a last minute most important information that they don't tell you other times. Then I saw he threw cooked food vertically down ! ..Hehehe !
