The development, at Cockenzie in East Lothian, would be able to accommodate vessels that are unable to berth alongside further up the Firth of Forth because of their height and width.
The plan put forward by Cockenzie Development Company is for the 120-acre site that houses the twin-chimneyed Cockenzie power station to include an eco village, a green-themed visitor centre and a retail and business park.
The cost of the entire scheme is expected to be around £300m, with construction taking 10 to 15 years.
Funding is expected to come from private investment, Scottish Government backing and EU initiatives such as the trans-European transport network (TEN-T).
Around 70-80 ships visit the Forth Estuary annually offering shorex opportunities to Scotland’s capital. They are mainly handled at Forth Ports’ terminal facilities in Leith and Rosyth, or at two anchorages, one near the Forth Road and Rail Bridges and one in Newhaven.