The industry standard depth limit for recreational divers is 130 feet (39m) at sea level. During basic scuba certification, students experience depths of 25-60 feet (8-18m), and a “deep” dive is considered more than 60 feet (18m). “Going Deep” is not an end in itself from scuba enthusiasts. Science has shown that the vast majority of marine species live at depths less than 60 feet (18m).