In this paper, the Safe Bathing Master Plan deliberated by the Municipality of Rimini, in Italy, is presented. As is well known, the main goal of a sewerage master plan is to avoid sanitary problems, prevent floods, reduce combined sewer overflows to receiving waters in wet weather thus improving the environmental quality both for inhabitants and tourists. Of course, such items become more severe with references to cities, as Rimini, for instance, located close to the sea and where the number of inhabitants strongly varies during the year time due to seasons’ tourist inflows that impact on the carrying capacity. In the experience in Rimini, the iter for a new sewerage plan started more than 10 years ago, and in 2011 a new perspective has been chosen, together with a large involvement of the citizens in the decision making. In the present paper, first, the genesis of the plan is presented. Then, in section 2, details about the plan are given. A special section is dedicated to the mitigation of the impact of the construction sites on the citizenship. Finally, a discussion on the benefit of the plan is reported. At present, more than 60% of the constructions foreseen in the Safe Bathing Maserplan has been realized.