A North Welsh mountaineering instructor took the ultimate selfie when he filmed himself climbing Ben Nevis using a drone and a GoPro camera.

Rob Johnson, 38, who is based near Snowdon, composed the shots by using a remote control screen as he walked up the mountain.

Ben Nevis, Ledge Route - Aerial filming using a drone from Rob Johnson on Vimeo.

As he honed his skills in aerial film-making, he knew that he wanted to be the first person to make a drone video of Ben Nevis - the highest mountain in Britain.

It took 40 minutes for Rob to climb Ben Nevis and around two hours to edit the footage, though it took six weeks to wait for clear blue skies and good weather.

But when you watch the finished article, you can see that it was definitely worth the wait.

He said: "The North Face ridge of Ben Nevis just seemed to be the perfect route for the film. It's beautiful, and it gives you a good sense of scale and proportion for the shot."

When asked what the toughest part of the project was, he said: "The hardest part was composing the shots [on the remote control screen] while constantly on the move. I knew I needed to keep moving - my battery life was pretty low!"

Rob bought his first drone two and a half years ago after he was 'blown away' by an aerial video of the Himalayas that he watched online - but it took him months to teach himself to use it.

"It was hard work learning how to fly it," he admits, adding, "but it's given me the foundation skills to start my own company."

Rob only set up his aerial film-making business Film Up High earlier this year, but is already working with ITV on The Mountain series - a programme that follows a year in the life of Mount Snowdon, the busiest mountain in Britain.

He has received a lot of interest from the adventure market - with films of biking, running and extreme sports proving popular - but he can also produce aerial inspections of wind turbines and roofs for clients.

His work is proving to be a big hit online, as his Ben Nevis video has already racked up 20,000 views in its first week.

But is Rob scared that other budding film-makers might start copying his ideas?

"I think to do what I did, you need different skills," he says, laughing.

"You need to be able to fly a drone well, have film-making experience to understand what looks good - and you need to be a decent mountain climber as well."

He adds: "But first and foremost, I hope these films inspire more people to start mountain-climbing."