A hiker captured the incredibly rare phenomenon of an ice disk on a mountain walk in the Scottish Highlands.<br /><br />The circular sheet of ice is seen in a glen on the mountain of Beinn Bhuidhe, which is south of Lochan Shira, and north of Achadunan.<br /><br />Dan Brown, 32, from Dunoon was hiking up the Munro when he came across the rare sight with his father.<br /><br />He said: "I was hiking Beinn Bhuidhe, a Munro at the head of Loch Fyne, with my father.<br /><br />"We’d taken mountain bikes with us and, for the best part, had been carrying them up a hydro track.<br /><br />"Visibility wasn’t great, but after about an hour-and-a-half the snow stopped and cloud cover started to clear.<br /><br />"We took a break to fill our water bottles from the burn by the track - that’s when we noticed the ice disk slowly spinning at the foot of a small waterfall."<br /><br />Both Dan and his father had never seen or experienced an ice disk in the flesh and were taken aback.<br /><br />He added: "Neither of us had ever seen anything like it, a perfect circle of ice slowly rotating in the water, so we thought it must be a rare occurrence and took some photographs and videos.<br /><br />"We assumed at the time that it was caused by the flow of the waterfall meeting the current of the burn, it wasn’t until afterwards I read about ice disks and realised this was what we’d witnessed.<br /><br />"We hadn’t encountered anyone else on the hike, it felt like we were the only people for miles around.<br /><br />"So then to happen across something so serene and perfectly formed, it felt surreal."<br /><br />The Met Office lists ice disks as "A rare phenomenon that tend to occur in very cold oceans and lakes. <br /><br />"They are most frequently seen in the Baltic Sea and around Antarctica but also form relatively frequently on the Great Lakes of the United States and Canada."<br /><br />The video was filmed on January 2.
