Our guide warned us about the freezing water before we left the warm surround of our tour bus. That was of course after he had also told us that the 'Fountain of Youth' so sought after my humanity since time immemorial, was just outside our window in the form of the River Sligachan on the Isle of Skye, in Scotland.
Scandinavian blood may run in my bones but freezing cold water is not my "cup of tea", so I merely exited to take photographs whilst others in my group did in fact dip their hands and faces in the rushing river.
How did Sligachan come to be known as the 'Fountain of Youth'? The story goes that a poor Highland maiden was horribly disfigured by a clan rival to her own but then was saved by a faerie queen. The queen immersed the girl in the Sligachan River and when she emerged, she was beautiful and scarless once more.
Whether you believe the stories or not, and the Scottish have many, the area around the river is stunning in its wildness and subtle colour. It's an incredible place to stop and take photographs but do leave yourself at least 35 - 45 minutes. Hike up and down the river, away from the bridge that is so well known [and where visitors are normally dropped off], and make sure to get a few landscape photographs that don't have hordes of tourists in them!