Page 267 - Manual for Activities directed at the Underwater Cultural Heritage

particularly in areas with coral, grasses and algae. Stones must not be turned over. Finally, the divers, including scientist-divers, must collect all waste they come across while diving. On-site facilities must be proportional to the number of visitors. This is in no way different to the management of sites on land.
Boat and vehicle use
Site installations and the boats used should not cause the erosion or degradation of beaches, shorelines, wharves or working areas. The site, its accessibility and its enjoyment must not be detrimental to the immediate environment. Vehicles’ use should also not contribute to weakening the substrate, as for instance with regards to coral, cliffs, and slopes. These are, of course, aspects that need to be integrated in the management plan. Other users in the area must not be exposed to any danger incurred from vehicles. The site can be provided with marked access routes avoiding particularly sensitive areas. These can be explicitly signposted to avoid degradation. It is
266 advisable to involve marine biologists in the ma-
B.Jeffery. A mooring block dropped onto the Kitsugawa Maru, causing considerable damage, Guam United States. While this poses a threat to the archaeological site, the navigational or environmental hazard of a wreck should be taken into account in its protection. In the illustrated case a site management plan should try to find a non disturbing solution for flagging the archaeological site to passing ships.
Environment