A combination of snorkeling and scuba diving where the swimmer uses the fins, mask, and breathing apparatus commonly used in scuba diving, but the oxygen tanks usually strapped to the back are instead attached to floating rafts that remain on the water's surface.
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Challenge yourself
Level up your vocabulary by setting personal goals.