Post Office – Isle of Arran, Blackwaterfoot – Opening Hours & Branch Details You will find Post Office situated at an ideal location on A841, about 7.21 miles south-west of the centre of Isle of Arran, in Blackwaterfoot (near Kinloch Hotel and South Arran Marine Protected Area). This branch is a great addition to the local businesses of Shiskine, Meml, Kilpatrick, Birchburn, Manse, Torbeg, Blackwaterfoot and Swallowbrae. If you plan to stop by today (Friday), its business hours are 9:00 am – 5:30 pm. On this page, you will find information about Post Office Isle of Arran, Blackwaterfoot, including the working times, branch location and direct phone.