Recent Posts

Why should divers get fit?

Health fitness is a must for all divers. Some benefits of fitness are increased heat and cold tolerance, increased diving safety, reduction of injuries, delayed aging...

Schizophrenic photographer

The underwater photographer is an incongruous mixture of three personalities: technologist, artist and diver. The task of making temperamental terrestrial equipment perform complex calculated...

Reading the waves

Skin divers should understand the mechanics of waves to enhance dive safety. They should look for where the waves barely break on one side...

Scuba quiz: circulation system

The cardiovascular system undergoes changes underwater. By being aware of the changes and knowing why they occur, divers can better understand what happens to...

Invertebrates: the twilight transition

Reef activity changes to predation as illumination fades. The nighttime creatures come out of their hiding places and look for food. Some of these animals are...