What does the term "surface interval" refer to?

The term "surface interval" specifically refers to the time spent at the surface between successive dives. This period is crucial for divers as it allows the body to eliminate excess nitrogen absorbed during the dive to reduce the risk of decompression sickness, commonly known as "the bends." The surface interval gives the body time to adjust and is an important factor in dive planning and safety.

While preparing for a dive, performing gear checks, or the overall duration of the diving experience are important considerations for any dive, they do not accurately define the concept of a surface interval. The primary focus of a surface interval is the specific downtime at the surface, making it a critical aspect of safe diving practices.