In pictures: Cyclist Mark Beaumont rolling in the isles
Scots endurance cyclist Mark Beaumont completed the Hebridean Way Cycling Route in 24 hours earlier this year.
The 185 miles (297km) journey across the Western Isles from Vatersay to the Butt of Lewis includes 10 islands, six causeways and two sea crossings.
Beaumont's cycle of the route in March was filmed, with footage released online earlier this week.
His trip was also photographed by film-maker and photographer Kieran Duncan.
Duncan's images show Beaumont on his challenge and island landmarks, including the ancient Callanish Standing Stones on Lewis, as well as some the Hebrides' light pollution-free dark skies.
Blairgowrie-born Beaumont came to prominence after completing an 18,000 mile round-the-world bike race in record time. He followed this with a 13,000 mile ride down the length of the Rockies and Andes in America.