The Adventure Show - Season 4

The prestigious Mountain Bike World Cup in Fort William took place in June, with Britain entering as the top-ranked nation in the men's downhill and with Steve Peat the defending world champion. Can Peat repeat his success in his spiritual home? Also, there's more on offer for bikers than just that gruelling downhill course, and the programme takes to the hills with Scotland's well-known walker Cameron McNeish.

This month the Adventure Show heads west to the Isle of Skye for 95 miles of road biking.

The Adventure Show heads south to the Borders for the British Off Road Triathlon Championships, better known as the Durty Triathlon. Over 300 competitors plunge into Scotland's coldest loch for a 1500 metre swim. Then onto the saddle for a tough 30 kilometre mountain bike ride. To round it all off, there is a 10 kilometre hill run. Also in the show, we are joining a group of intrepid youngsters as they prepare for their Gold Duke of Edinburgh's Award and finding out how to make the most out of a day in the mountains with the experts from our National Outdoor Training Centre, Glenmore Lodge.

This month the Adventure Show heads west to Fort William for the Ben Nevis race, often described as the world's toughest. Each year nearly 500 men and women run or throw themselves up and down Britain's highest mountain in under four hours - and the fastest do it in just one and a half. It started in 1895 and since then competitors have been coming to Lochaber from around the world to take part in the challenge.

In this edition, the Adventure Show is taking to the rapids of the stunning white water of the River Tay near Aberfeldy for the Grandtully Premier. Over 100 top-class paddlers test their skill in Scotland's major canoe slalom event.

Scaling the heights at the World Youth Climbing Championships. It's the first time this event has been held in Scotland and over 300 competitors from 75 countries have come together at the Edinburgh International Climbing Arena in Ratho for a weekend of finger snapping, jug grasping, crimp-clasping action.

In the middle of winter, with 17 hours of darkness, 500 competitors head north of Inverness for one of the world's toughest mountain bike races - the Strathpuffer 24-hour marathon. Conditions are testing, with ice and mud pushing the competitors and their bikes to the very limit.

Andrew Murray from Edinburgh is a doctor and a marathon runner. In 2010 he devised a journey that would break new ground. With minimal support he planned to run an ultra-marathon every day, from the tip of Scotland to the Sahara desert in Morocco. And to make it more difficult, he'd attempt it during winter. The distance was 2650 miles and he planned to complete it in 85 days, without taking a single day off. The Adventure Show team followed him as he attempted to set a new world record.

It's fast, it's furious and it's brutal - the Carnethy 5 started over 40 years ago and is the first hill race of the season, when the weather can vary from brilliant sunshine to deep snow. This year 600 hardy competitors battle it out over the Pentland hills just south of Edinburgh.