A tourist is facing an eye-watering £168,000 fine for throwing a massive rock down a gorge in a popular national park.

The young man's friend filmed him casting the heavy rock and the video was later uploaded to social media.

Seconds after the large stone was tossed, a deafening bang was heard as it hit the ground several metres below.

The stunt was filmed at a point along the popular Cares Trail in northern Spain's Picos de Europa National Park.

Of the park's estimated 2m annual visitors, around 300,000 hike the Cares Trail - its most popular walking route.