Czech free-diver David Vencl swam nearly 266 feet beneath ice on Tuesday, breaking the world record by braving freezing water in a disused quarry northwest of Prague in nothing but swim trunks and goggles. The swim saw Vencl hold his breath for two minutes and 42 seconds.
Vencl said he felt "great" after emerging from the hole in the ice that covered the water, which was chilled to a numbing 37 degrees.