Lochindorb Castle (The Wolf's Lair - http://en.wikipedia.org/wiki/Lochindorb
) this week on a very cold day! The loch is freezing over but there's still a curving strip of less thick ice that shows up as dark. I think it probably follows some of the route of the current of the burn that feeds and drains the loch.
Landscape and travel
Andysnapper, S_Psharma, Hermanus and 29 more