Ligurian Sea Cetacean Sanctuary the main feeding ground for Fin Whales in the Mediterranean basin. The sanctuary was established on 25 November 1999 and is the first (and currently the only) international / High Seas MPA in the world covering areas of the Mediterranean seas of France, Italy, and the Principality of Monaco. To underline the importance of the sanctuary, it has been added to the Specially Protected Areas of Mediterranean Importance (SPAMI) list of the 1999 Barcelona Convention. Ligurian Sea Cetacean Sanctuary Originally called the International Ligurian Sea Cetacean Sanctuary (Ligurian Sea Sanctuary), what is now known as the Pelagos Sanctuary for Mediterranean
Metre sea water as most diving is done in the sea. If ambient pressure in fresh water and hyperbaric chambers is measured in feet and metres sea water, the same decompression algorithms and tables can be used, which eliminates the need to use calibration factors when diving in these environments. In the metric system, a pressure of 10 msw is defined as 1 bar. Pressure conversion between msw and fsw is slightly different from length conversion between metres and feet; 10 msw = 32.6336 fsw and 10 m = 32.8083 ft. The US Navy Diving Manual gives conversion factors for "fw" (feet water)