We asked our contributors to share their favorite photos that show underwater seascapes, and they came back with a range of wide-angle shots, featuring a variety of marine life large and small.

In the first of a new two-part series, Simon Pridmore describes a few equipment-related problems that divers commonly encounter and offers some tips on how to avoid or deal with them.

On 3 May 2023, Davide Marchetti broke a world record in cave diving. He did the longest swim in a cave. Here is his story.