Progetto Reef Balls, Lago Di Como...Plan REEF BALL is born in the within of the program of protection of the nature `Project A.W.A.R.E.' of the PADI and it is promoted from the Diving Center of Como with the scientific support of Association PROTEUS, in collaboration with the Provincial Administration of Como and the sport societies Como Sub, Provincial Association Fishermen Underwater Sportswomen and and the nucleus of Civil Protection of the section of Como of the Italian Federation Underwater Activities. The main objective of the plan is that one to create to level experiences them in the lacustrine atmosphere new habitats that offer shelter, nutriment and protection to the organisms that inhabit it. Such objective would come caught up thanks to the positioning of a series of treads of different concrete measures (Reef Balls) in an area lacking in plants and of gorges, going therefore to create risen of artificial barrier that it offers new vital spaces laddove there is uniformità and monotonia of I found them and consequent absence of shelters. After a study of the area and the feasibility of the plan it has had beginning the phase of construction of the Reef Ball that has carried to the realization of twenty or so treads. For the construction of the' Reef Balls' it has been used the concrete, material that does not introduce effects denied you for the aquatic atmosphere being lacking in points out to you chemical, stable and highly resistant to the abrasion. The Reef Balls has been posizionate in water the 13 opens them the 2002 in the before lago area Dock of Villa Geno to variable depths between the 3 and 20 meters and will come monitorate in order at least three years with periodic controls, entrusted to volunteers and investigators, to the aim to estimate colonization dynamics. They are available, for the volunteers who mean to participate to the monitoring activities, special cards to compile to fine immersion differentiated in diurnal and nocturnal immersions. Ulterior and an interesting control of the colonization will....