L'attività di ricerca nella circoscrizione di Cefalù (Presentazione dell'attivtà di ricerca svolta dall'unità locale di PAlermo)

[automatically translated] The local unit of Palermo research for the statistical evaluation of the underwater tourism has been conducted, as well as the Aeolian Islands, in the tourist district of Cefalu. To the research objectives laid down for the Aeolian Islands they have been added new ones, using data from different sources, in some cases due to surveys organized ad hoc. The results of the research of Cefalu are presented with details in a separate volume of this same series. In this paper it will be presented the actual work done synthetically, and particular attention is given to the logic that inspired the basic search options.