Marina and ports are infrastructure investments for portfolio diversification. Infrastructure investments such as ports, marinas and marinas are considered an opportunity for long-term and predictable cash flow.  Marina investments belong to the real assets asset class, which in turn belong to alternative investments. Marina Investments: Infrastructure investments are not only an alternative to portfolio diversification for institutional investors from a financial point of view: the expansion and maintenance of infrastructure such as roads, bridges and railways and ports is necessary for society. Marinas are meeting places for residents and holiday resorts for yacht owners. According to a survey from 2021, more than 90 percent of the institutional investors surveyed said they wanted to expand their investment activity in alternative investment funds (AIF). Of these, 80 percent plan to increase their investments in infrastructure funds. Insurance companies and pension funds were surveyed. Marina and marina investments some advantages:  Among the advantages of infrastructure investments, apart from the low correlation with other asset classes, is that they are long-term oriented. Moreover, they offer a regular inflow of funds over the long term.