Cultural Landscape by the Sea as a Commons: Collaborative Planning for the Metropolitan Waterfront of Naples

Cities by the sea are special "historic cultural landscapes", because they tell stories of men and sailors: maritime collective memory is expressed in space, form and function. Maritime identity acquires new meanings for the touristic enhancement of urban coastal areas and it may represent a driver for community-based socio-economic development. In order not to repeat past failures, the strategies to stop deterioration in urban coastal areas should take place both through a conscious and evolved type of tourism both through innovative processes. The paper analyzes some interventions of waterfront regeneration and tourism development in some seaside cities by sharing their maritime culture. New models of lateral participation took place as alternatives to the vertical models: "collaborative commons" might start its process for the touristic enhancement and regeneration of the metropolitan cost of Naples.