Cannabis (majiuna) use may be growing in popularity, but combining it with scuba diving poses serious risks to both mind and body. THC impairs coordination, judgment, and response time—factors critical to dive safety. This article explores how cannabis affects divers, increases the risk of decompression sickness (DCS), and why dive organizations like DAN and Ocean Therapy Charters enforce strict no-cannabis policies. Learn why diving under the influence is not just unsafe—it