The first Marathon Hebrides is set to take place on 10 August.
The sold-out event, which has an international field of participants, is the only marathon-distance event to be held in the Outer Hebrides.
Setting off from Talla na Mara on the Isle of Harris, runners will cover 26.2 miles of stunning beach views, undulating terrain and breath-taking scenery.
Lewis Wind Power, developers of the Stornoway Wind Farm, will be headline sponsors of the event.
Kerry MacPhee, Community Liaison, Lewis Wind Power, said: “The Lewis Wind Power team were keen to get behind this exciting new event which we believe will bring significant numbers of additional visitors to the islands in the all-important summer season. The spectacular course should generate great publicity for the Outer Hebrides and the race has the potential to grow into another landmark event in the islands’ sporting calendar.
“We wish Willie and his team every success with their inaugural event.”
Willie MacRury, Race Director of Marathon Hebrides, said: “We’re very pleased to have Lewis Wind Power on board as partners for the inaugural Marathon Hebrides.
“A lot of hard work goes into the planning and preparation of events like this and the sponsorship secured will ensure we lay on an event like no other and give participants an unforgettable experience.”