earthstory:

A swim through a Finnish pond

The areas that were covered with thick ice sheets in the ice ages that ended some 12,000 years ago are covered with lakes and ponds of many sizes, many of which are a beautiful blue or green colour, though in the case of spotted lake (see http://bit.ly/29kJQzp) something more surreal can result.

Loz

Image credit: Audionautix

http://bit.ly/29xKHcs