The two Ians belong to our club and their presentation will take us to the magical world of sea creatures and how to capture their life and their environment.  Underwater photography is one of the most difficult areas of photography to master. I am sure that you you will be viewing a lot of beautiful images.
These photographers, not only have to be competent in diving, they have to worry about lighting and maneuvering around their subjects, often using heavy equipment, and often trying to get perfect focus and depth of field on tiny subjects.