VIDEO: The downside of climbers going up Snowdon

With 360,000 walkers climbing the summit every year, Snowdon is easily Wales' busiest mountain. But critics say her popularity puts other attractions in Snowdonia National Park in the shade and gives mountain rescue teams a stressful summer. Lorna Prichard reports.

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Celebrating our National Parks

Over thirty years ago, Snowdonia became one of Britain's first national parks. There are fifteen around the UK. Three are here in Wales. To celebrate National Parks Week we look at some of the challenges facing these beautiful parts of our country.