We were photographing a big school of bat fish in front of the fully blue background in Shark Rafeen, Rash Mohamed National Park in Egypt, but it is extremely hard to capture a school of fish in a nice position. Not so far from the others I noticed a crevice in a rock, which fish used as a cleaning station, and slowly, very slowly, I swam into the gap, switching places with the cleaning fish. This made it possible to photograph a bat fish – that only sees to the sides and is incredibly hard to face from the front, since it always moves away, trying to see – frontwise.