A BASE jumper with a constant desire for thrill-seeking is the subject of a new documentary which examines extreme sportsmen's need for danger and excitement.

Danny Witchalls, from Buckhurst Hill, was followed around for a year by a camera crew for the Channel 4 Cutting Edge programme The Men Who Jump Off Buildings, due to be screened next Wednesday (July 28) at 9pm.

He became involved in the project two years ago when he responded to a call for participants left by producers on a UK basejumping website.

Danny, who describes himself as “39 and a few months”, said: “I was a bit tired of wannabe base jumpers giving all these reports and trying to get their name in the media. I thought they should have the man who has the most experience of doing it and that's me.”

The documentary follows Danny and his long term jumping partner Ian Richardson as they pull off a series of parachute jumps from famous buildings around London.

“The film crew followed me about, but I tried to ignore them really- I had more important things on my mind,” Danny said.

“You can't just book jumps to order. It's very weather dependant and a lot of the buildings I jump off I don't exactly have permission to be there. All in all it took about two years with about one year of filming.”

In his time, Danny has jumped off buildings including Wembley Stadium, Nelson's Column, and The Millennium Dome - Now the O2 centre.

A roofer by trade, he recently marked ten years in base jumping- a remarkably long time in a sport where one in six participants is killed.

“You don't get many people going that long,” he said. “They die or get injured, or they just grow up.

“I do it because I like it. I enjoy it, and I get a lot out of it. It satisfies my need for excitement.

“I do sky diving as well- I did that for a few years before base jumping- and I've had a go at bungee jumping, but nothing else even comes close to matching base jumping. Since I've done that every else becomes insignificant.”