More than 200 jobs will be created through the development of a new deep water terminal in the Outer Hebrides.
Initial work will begin on the Stornoway Deep Water Terminal next summer, with a planned opening in May 2023.
The £49m investment comes from a number of partners, aiming to strengthen transport links and support a range of industries in the Western Isles.
The project includes a facility for berthing for cruise ships up to 360 metres long, a new deep water berth to cater for larger cargo vessels, and a freight ferry berth; berthing and unloading facilities for renewable energy components and development land for a range of uses such as industrial processes and decommissioning.
Rural economy secretary Fergus Ewing MSP said: “This transformational project, which will put Stornoway in pole position to take advantage of emerging technologies such as hydrogen, is the culmination of dedicated partnership working between