What is it called when you swim underwater?
To avoid the incoming fire, I repeatedly swam under water as long as I could hold my breath, attempting to make it to the north bank of the river.
What is underwater swimming called?
Aqua-Lung. Word forms: divers. B1+ A diver is a person who swims under water using special breathing equipment.Ocean swimmer is an athlete who competes in open water swimming competitions in the ocean or who trains or exercises in open bodies of water for fitness or fun.Synonyms of ‘underwater’ in British English Most of the mouth of the cave was submerged in the lake.