In recent years, the growth of tourism has intensified the recreational use of Sicilian beaches, leading to more frequent cleaning operations aimed at removing waste. However, these cleaning activities often involve P. oceanica banquettes, which are often removed for aesthetic reasons, despite their important ecological role. Consequently, hundreds of cubic meters of P. oceanica banquettes and sediments from each beach are removed every year. This becomes a broader issue along the Mediterranean coasts deserving attention in terms of management and public perception of P. oceanica banquettes. In this context, our study aims to propose an integrated methodological framework to assess the ecological and socio-economic implications of different P. oceanica banquette management practices. Sampling activities were carried out along the Sicilian coastline to record GPS coordinates, thickness, length, and width along each strand based on the season’s deposition. Fresh samples of P. oceanica banquettes were collected to estimate their biomass and the associated concentrations of nutrients and other chemical elements. In Spring, banquette deposits accounted for a total volume of 45,334 m³ and a surface area of 109,464 m². In Fall, the total volume was 181,890 m³ and the surface area was 237,749 m². Chemical analyses allowed to quantify biomass and carbon stock of P. oceanica banquettes and, therefore, their potential loss due to banquette removal. Furthermore, cost-benefit analyses were conducted to evaluate multiple management scenarios, including landfill disposal, in situ maintenance, and reintroduction into the marine environment. In conclusion, our study aimed to highlight the need to adopt sustainable management practices that recognize the ecological value of P. oceanica banquettes and the importance of their protection.