I had been floating face-down in the swimming pool of Matamanoa Resort in Fiji for nearly three minutes, eyes closed, breathing through a snorkel, when my freediving instructor’s voice reverberated ...

In static freediving, also known as time diving or static apnea, the goal is to stay underwater as long as possible with held breath. Freediver Vitomir Maričić managed more than 29 minutes. What the ...