Diving is not without risk—there is always a chance of death. There is always a latent or potential lethality within the “system”—where system is defined as the equipment, people and the physical, social or cultural environment. We cannot make diving 100 percent safe despite what anyone tells you. We can make things safer, but we cannot make diving safe.

The armoured cruiser Carl Friedrich was constructed in the year 1902 at the well-known shipyard of Blohm & Voss in Hamburg, Germany. The armoured cruiser had a length of 126m and was equipped with an impressive array of guns and torpedo launchers. She was the second ship of the Prinz Adalbert class when she was commissioned by the Imperial German Navy on 12 December 1903.