What is the minimum recommended surface interval between two dives?

The minimum recommended surface interval between two dives is generally set at 60 minutes, as this allows enough time for nitrogen accumulated in the body's tissues during the first dive to off-gas before beginning the next dive. This duration is critical for minimizing the risk of decompression sickness, which can occur if divers ascend too quickly or do not allow sufficient time for nitrogen to leave the body after exposure to increased pressure underwater.

During the surface interval, the body continues to eliminate nitrogen, and the longer the interval, the more nitrogen can be expelled. The guideline of 60 minutes strikes a balance, providing an effective period for off-gassing while maintaining a reasonable timeframe for divers who may wish to stay active throughout the day. Adhering to this recommended interval is an essential safety practice for all divers.