Overview

• Vitomir Maričić achieved the mark on June 14, 2025 in a three‑meter pool at the Bristol Hotel in Opatija, Croatia, before an on-site panel of judges and about 100 spectators.
• Guinness World Records recognizes the time of 29:03 as the longest voluntary breath-hold underwater, surpassing Budimir Šobat’s 2021 record of 24:37 by nearly five minutes.
• The attempt was oxygen-assisted, with Maričić breathing pure O2 for roughly 10 minutes beforehand to denitrogenate and extend safe apnea time, a category distinct from unaided breath-hold records.
• Coverage contrasts the feat with unaided benchmarks such as the 11:35 record and notes that even this time only approaches some seals while far short of deep-diving whales.
• Maričić highlighted safety in public posts, warning that oxygen and carbon dioxide toxicity risks make such stunts dangerous without professional training and oversight, and he framed the effort as a personal challenge tied to ocean conservation.