Inexperienced divers should avoid diving if the current exceeds what speed?

Inexperienced divers are generally advised to avoid diving in currents that exceed 0.5 knot because strong currents can present significant challenges and dangers for those without the necessary skills and experience. A current flowing at this speed can make it difficult for divers to control their movements and could lead to exhaustion, disorientation, or increased risk of accidents. It is important for those who are less experienced to dive in conditions where they can maintain control and safety, which in this case means staying within a current speed of 0.5 knot or less. This threshold helps ensure that divers can focus on their underwater experience rather than struggling against environmental conditions.