There is a sport called finswimming which has underwater speed disciplines (apnea or with bottles). But as the name implies it comes with the use of fins. http

There is a sport called finswimming which has underwater speed disciplines (apnea or with bottles). But as the name implies it comes with the use of fins. https://en.m.wikipedia.org/wiki/Finswimming https://en.m.wikipedia.org/wiki/Finswimming