There are many ways you can review a dive computer, but wearing it on your arm for one or two dives does not constitute a proper test—at least, not a meaningful one. This review is therefore based on the use of the unit over a six-month period, where around 65 dives were conducted in different locations and water conditions. Lelle Malmström puts the Ratio’s new dive computer iX3M 2 through its paces.

Aside from sharks, moray eels are one of the most maligned and misunderstood of all marine animals. Thought by many to be highly dangerous because of their depiction in films and books, morays are not malicious monsters, but important predators of any healthy marine ecosystem. They are generally shy and docile if not harassed. Nigel Marsh shares insights about these animals.

It may be more than four years since the 2018 Thai cave rescue dominated headlines, but the recent movie and miniseries releases have generated highly emotional reactions once again. Are divers being put off cave diving, and why should any diver consider going underground? Yvonne Press takes a closer look, interviewing several divers and technical diving instructors for this report.