Deep scuba diving using compressed air is definitely to be considered a high-risk dive. All international diving organizations recommend limiting diving with compressed air to -40 meters of depth to avoid incurring what is called nitrogen narcosis. Compressed air is denser as the depth increases, and consequently greater breathing effort is required which could lead to breathlessness and greater air consumption.

The discovery of an unknown wreck is certainly one of the most beautiful emotions a diver can experience. However, it is an increasingly rare event now, the wrecks that can be visited with scuba loaded with compressed air are now practically all known in the various areas of the Mediterranean Sea, ...