Martinborough-based freediver Kathryn Nevatt set a new world's best in the freediving discipline of Dynamic without fins over the weekend, swimming 163m breaststroke underwater on a single breath.
That effort added 4m to her previous national record and bettered the world record of 160m held by Russian Natalia Molchanova.
The distance represented six and a half lengths of a 25m pool and the total dive time was 3m 1s.
Nevatt's remarkable performance came at the National Indoor Freediving Competition hosted by Wellington's Lazy Seal Freediving Club and held at the Te Rauparaha Arena Aquatic Centre in Porirua.
Over three sessions competitors took part in the three indoor freediving events of Static Apnea (breath hold time), Dynamic Apnea (horizontal distance swum under water with the use of fins or a monofin) and Dynamic without fins (horizontal distance swum underwater without fins, doing a type of breaststroke).