What does a conservative approach to safety stops require?

A conservative approach to safety stops emphasizes the importance of slowing ascent rates and allowing the body to off-gas nitrogen that is absorbed during a dive. This method typically includes a 3-5 minute safety stop at a depth of 15 feet for every dive. By adhering to this practice, divers significantly reduce the risk of decompression sickness, as it allows nitrogen to safely leave the body while the diver is at a shallower depth.

This particular depth and duration is popular among divers because it is generally regarded as effective for managing residual nitrogen levels after completing the dive. Additionally, it provides a buffer zone where divers can observe their environment and address any potential issues before surfacing completely, thereby enhancing overall safety.

The other responses focus on different depths or methods that do not align with the established practice of a safety stop at 15 feet. For example, stopping at 30 feet may not provide the same benefits, and stopping only upon reaching the surface neglects a crucial step in safe diving practices. Lastly, a stop at any depth is too vague and does not ensure the benefits associated with the specific safety stop at 15 feet.