What is not a possible hazard of wreck diving?

Shallow depths are generally not considered a hazard of wreck diving because they often present a safe environment for divers. In fact, many wrecks tend to be located at depths that are accessible even to less experienced divers. Shallow depths can provide the opportunity for divers to explore wrecks with greater ease, allowing for more extended bottom times and reducing the risks associated with deep diving, such as rapid ascents or decompression sickness.

In contrast, other factors like sharp edges pose physical dangers as divers can easily get cut or snagged on protruding metal or debris inside a wreck. Limited visibility is another hazard common in wreck diving due to sediment disturbance or the structure itself, which can make navigation challenging and increase the risk of disorientation or accidents. Deterioration of metal in wrecks can lead to structural instabilities and the potential for falling debris, creating an unsafe environment. Thus, while wreck diving can be thrilling and offers unique exploration opportunities, shallow depths do not inherently introduce significant risks compared to other factors involved in this type of diving.