The images in this gallery may be used for educational purposes by primary, secondary and tertiary students, their teachers, or for home school learners. All images are copyright to the Great Barrier Reef Marine Park Authority and may not be used for commercial purposes. Credit must be given to the Authority if any of these images are reproduced in any format, electronic or otherwise (e.g. "Photographs courtesy of the Great Barrier Reef Marine Park Authority"). Use other than that described above is illegal.