Minor Convention Cities of Arts are also professionally qualified and have improved promotional and marketing strategies for their own destinations. At present they are in the growing phase of their life cycle. Sea Cities, Minor Tourism Cities and Minor Urban Specialized Cities show great potential but at present they do not have the support of specialized service companies to count as an efficient convention network. In this case, structural investments are not so much required, but instead the creation of local networks in which convention firms, service enterprises and public institutions cooperate are needed.