The Po Delta Regional Park was established in 1998 and has been operational since 1995. It is an area where land and water interweave, a place of ecological interest for its flora and fauna, an "artificial" environment created by rational organisation of the waterways. Unlike other Italian parks, the Po Delta Park features a highly anthropic situation with a multiplicity of productive organisations. So a number of environmentalist proposals have been advanced for its safeguarding. Comacchio is the historical barycentre of the delta and the Park both for its special environmental and town-planning physiognomy and for the importance of its monuments. The town, which until a hundred years ago was an island surrounded by the waters of the "valle", today remains an unusual place whose beauty and uniqueness have fascinated and entranced generations of writers and film directors.