Scuba Diver Ocean Planet Issue 04/2016 | Page 58

A DIVE INTO HISTORY Growing up barely 30 kilometres from the now marine protected area (MPA) of Baia, this underworld wonderland, an ancient Roman city underwater, completely enchanted me. I still remember my first dive there as a curious teenager. At that time it was unprotected and many divers swam off with ancient amphora and other important relics. I returned to Baia recently after many years absence and I was very happy to see things had changed for the better. The Italian government declared Baia an MPA in 2002. This resulted in the banning of commercial and recreational boats and the laying of clear demarcation buoys indicating protected areas. Since then much underwater conservation work has been undertaken by government authorities, and marine activities have been regulated. Diving centres operating in the area have been entrusted with handling tourist traffic and site control. The proper management and preservation of underwater cultural heritage sites pose the greatest challenges of contemporary underwater archaeological science. Many important international organisations, including UNESCO, focus on how to retain the integrity of such sites while simultaneously opening them to the public. Archaeological sites differ from most shipwrecks by their close proximity to the coast and shallows. They are easier to manage and allow the creation of protected “underwater museums”. However, this 03 02 Being able to dive around this area of extreme historical interest is absolutely incredible SDOP 56 can also create problems such as plundering and human damage, physical damage from tides, waves and storms, and biological damage from fast-growing marine organisms. A large part of Baia, including buildings, floors, columns, mosaics and roads, is now preserved underwater as a result of bradyseism. This is a volcanic phenomenon which causes huge geomorphological changes due to the slow sinking and re-emergence of the mainland. Scientists deduce past and current events by studying the re-emerged marble columns of Puteoli’s temple (Macellum) in the historical centre of Pozzuoli, a beautiful little fishing village beside Baia. Being able to dive around this area of extreme historical interest is absolutely incredible, and being designated an MPA for many years has also encouraged a wealth of sea life to flourish amongst the ancient Roman ruins, so every dive is extra interesting. There are several dive sites both inside and outside the designated park. Baia was a very large city at the time, and the entire coastline is crammed with