Why is it important to be aware of decompression limits in cavern diving?

Understanding decompression limits is vital in cavern diving mainly to prevent decompression sickness, which can occur when a diver ascends too quickly after being at depth. Decompression sickness, commonly known as "the bends," arises from nitrogen bubbles forming in the bloodstream and tissues due to rapid changes in pressure. During a dive, divers breathe compressed air, which allows more nitrogen to dissolve in their bodies. If they ascend too quickly without adhering to prescribed decompression limits, the nitrogen that has been absorbed can form dangerous bubbles, leading to serious health risks, potential paralysis, or even death.

In cavern diving, where conditions can change rapidly and the risk factors increase due to the overhead environment, being acutely aware of these limits becomes even more critical. This knowledge enables divers to plan their ascents accordingly, perform safety stops, and manage their dive profile to ensure a safe return to the surface. Recognizing the importance of decompression limits ultimately helps maintain diver safety and enhances the overall experience of the dive.