Much of Europe has experienced sweltering summer weather over recent weeks. So it's not surprising when people look for a cool and shady spot, and maybe even a refreshing dip.

But how easy is that in a busy city in a land-locked country?

In the Swiss capital Berne, people have a spectacular solution to the problem, using the fast-flowing river Aare.

And as Imogen Foulkes discovers, it is not an activity that is advisable for everyone; swimmers must be confident and know what they are doing before they take the plunge. Bernhard Fleuti of Berne's life saving association is one of those on stand-by in case things go wrong.

It is not advisable to copy the activities shown in this video.

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