It's hip to be square!
Where you have a symmetrical image, such as in this example, using a square crop can make a huge difference to the success of the photograph.
It doesn't come out of the camera (or phone / whatever device you're using) in a square format, but is very easy to crop in post-production.
As an aside, this is another well hidden part of the world, Loch Dunmore, in Perthshire. If you get the chance, do pay it a visit. It's a beautiful spot.