Although striped marlins (Kajikia audax) are slower than some of their billfish cousins, their 50-mph speed was plenty fast for me. I tried to swim alongside this stealth bomber of the sea as it worked a baitball to separate individual sardines from the silvery mass. Amos Nachoum has the story.

A new photo competition has taken root on the western coast of Sweden, where local and international participants enjoy an exciting week of shooting underwater in Smögen, competing for attractive prizes. One of the contest’s organisers, Annika Malmberg, shares the story of the event, from the initial idea to the final result, as well as plans for its future.