Dive Into Success: Master the SDI Open Water Scuba Diver Exam 2025 – Make Waves with Confidence!

The recommended maximum ascent rate for scuba divers is between 9 and 18 meters per minute, which translates to approximately 30 to 60 feet per minute. This ascent rate is designed to minimize the risk of decompression sickness, also known as "the bends." When ascending, the body needs time to off-gas nitrogen that has been absorbed during the dive. Ascending too quickly can lead to the formation of nitrogen bubbles in the bloodstream and tissues, which can cause serious health issues.

The guideline allows for a controlled ascent where divers can safely expel excess nitrogen while still being vigilant about their ascent. Typically, a diver will also perform a safety stop at around 5 meters (15 feet) for additional safety, helping to reduce nitrogen levels further before surfacing. This practice enhances the margin of safety and is part of standard diving protocols.

Understanding this ascent rate is crucial for a safe diving experience, and following it allows divers to enjoy their time underwater while minimizing risks associated with rapid changes in pressure.