What must divers always consider regarding air supply in cavern diving?

In cavern diving, it is crucial to ensure an adequate air supply for both the planned dive and the exit. Since cavern environments can present unique challenges, such as restricted visibility, complex navigation, and the potential for getting lost or disoriented, having sufficient air is vital to safely manage emergencies and return to the surface. Divers should always calculate their air needs based on the duration of the dive and any contingencies that may arise, which includes considering the possibility of extended bottom time due to unforeseen circumstances. This proactive approach is key to minimizing risks associated with air supply and ensuring a safe diving experience.

Other considerations related to air supply management involve continuous monitoring throughout the dive rather than just at the surface or relying on other divers. These practices reinforce the importance of personal responsibility in recreational diving activities, especially in more challenging environments like caverns.