One of my first jobs was assisting the supremely talented camerawoman Justine Evans on her film about the elephants of Mt. Elgon , in my native country of Kenya . It was an amazing story, in a beautiful part of the world . In this amazing video of the underground actions of a herd of elephants living on Mount Elgon in Kenya. Night-vision cameras capture the huge changes in rock formation due to the elephant's presence in the pitch black cave. Watch more Elephant Cave videos with BBC Worldwide here: Fascinating video taken from BBC wildlife and animals documentary, 'Elephant Cave'.

I worked for 5 years-mainly in the field-on the ground breaking series Planet Earth. Of the two programs I was involved in, the "Mountains" program is the most special to me. There is something completely transcendental about mountains , and I can see why for millenia for many people they have , and are still, the home of the gods.

One of the crowning sequences which I worked on for the Jungles program of the BBC series Planet Earth. Since then, two guys have worked for 4 years nailing this stuff- their work leaves me speechless - check it out here

Between 2004 -2007, I spent three winters and a summer tracking and filming snow leopards with cameraman Mark Smith and Field Producer/Presenter Nisar Malik in the Hindu Kush Mountains of North West Frontier Province, Pakistan. This is the culmination of all our work , which won Best of Festival at Missoula International Film Festival in 2008, and more importantly, remains the best 3 years of my professional life.

Despite all the bad things I can say about penguins, the master camerawork of Mark Smith and the genius editing of Andy Netley made all the wrethced time we spent in the Adelie Penguin colony to get this sequence worth while

I worked on a shoe string to get this film out on the BBC - it was a subject close to my heart as I was born in Snowdonia, and my grandmother lived on its edges right up to her death.  It was broadcast against the opening ceremony of the London Olympic games, so no-one saw it , but somehow it won me a RTS Award and Best Newcomer at Jackson Hole Film Festival, from which this short excerpt is taken ( people still cant see it - unless they contact me dircetly!). I did like this review from Sam Wollaston in the Guardian though :

"At first I felt a little bit sorry for Snowdonia: a Year in the Wild (BBC2), going out, as it did, against a certain opening ceremony over on BBC1. But it actually seems quite apt. Where better to escape Boris's Big Bash than the mountains and valleys of north Wales? It's about as far as you can get – if not physically, then certainly in spirit – from what's going on in east London.

Sure, there'll be fewer people here, but the ones who do come will treasure it, the more so for the space, the quiet, the peace, and the solitude. And for it not being the Olympics.

And it's absolutely lovely – the place, the film, everything. Who needs Danny Boyle's urban ewes when here are their healthier country cousins, skipping away after having their daggy dreads removed? Otters play in the rivers, ravens tumble in the sky, peregrines plummet terrifyingly towards the ground.

There is the odd person about the place, too. Like Twm the poet, son of another famous writer, who once wasn't a woman and went on the 1953 Everest expedition, and now is a woman, though Twm doesn't mention this – probably bored of it. Then there's Rhys the wholesome park ranger, cheerfully patrolling the hills with his dog, rescuing juniper bushes. That's a nice job, isn't it? And Johnny, who doesn't look like a climber until he's on a rock face, moving up it, balletically, beautifully.

est – and most entertaining – of all, there's Gwyn the farmer, owner of some of those sheep. Gwyn likes winter best, when things go to sleep, and the batteries of the Earth are recharged. There aren't too many visitors – walkers, bikers etc – then either. The visitors used to make Gwyn angry. Not any more: "Now instead of waving my stick at them, and saying, 'Get off my land!', I say, 'Come on the land, learn a bit more about farming, where your food comes from, make friends, and leave something behind ... like a cheque.'"

Ha. Don't suppose Gwyn is that fussed about the Olympics."

Now and again, you get to work with a crew of complete and utter professionals , and on Great Bear Stakeout, I really lucked out. From camp support, through to cooks, ship captains , cameramen, trackers, tech heads- everyone on this production was working at the top of their game . The location, Katmai National Park is truly one of the top 5 wildlife locations in the world, and the bears that live their are so extraordinary that it is one of the first places that i intend to take my young boys when they are old enough. The product was more "TV" than I would've liked, but it was well received nonetheless. The time in the field was one of the most productive 6 weeks of filming I have ever done. Thanks team

We are required to film ourselves on our adventures - this one is one of the better outcomes . For some reason , I am due to go back soon..