Where should alternate air sources be located during a wreck dive?

During a wreck dive, alternate air sources, such as a spare regulator or an emergency air supply, should be located around the chest area for several practical reasons. This positioning allows for easy access in emergencies. When a diver experiences an air-sharing scenario, having the alternate air source within reach around the chest can facilitate a quick and smooth transfer of air from one diver to another.

This location also helps maintain the central balance of the diver’s gear, reducing the likelihood of entanglements or complications caused by reaching for an air source that is positioned elsewhere on the body. Additionally, it ensures the diver can maintain their primary task underwater without excessive movement or disruption to their buoyancy control.

While other options may seem feasible, they can introduce difficulties in accessibility and may not provide the most efficient way to share air quickly in emergency situations.