Adventure-seeking travelers thirsting to trek across a dramatic, ancient landscape or mountain bike on some of the world’s finest single track terrain are in luck. Virgin Atlantic Airways, Sierra Designs and BritRail are offering an incredible four-night prize for two independent explorers who want to play in the great outdoors of one of Europe’s most beautiful, unspoiled and undiscovered playgrounds.

With, three national parks, 498 miles of national trails, 18 regional walking routes, six purpose-built mountain biking centers and 180-miles of coastline, Wales is made for outdoor enthusiasts.

For travelers looking for offbeat adventure, Wales offers the International Bog Snorkeling Championship, the Man vs. Horse and Man vs. Train Competitions and the Real Ale Ramble. Check out these quirky events here.

For adrenaline junkies, there is the Welsh-created sport of coasteering which involves diving from cliffs and rock scrambling in the water. To learn more visit this site.

To enter the “Outdoor Wales” sweepstakes, go to www.travelwales.org by September 30, 2009.  One lucky winner and a guest will be flown to Britain on Virgin Atlantic Airways, then travel by train to North Wales with their first-class four-day BritRail FlexiPasses. The prize includes two nights at the luxury Escape Boutique B&B in the Victorian resort town of Llandudno, where Snowdonia meets the sea, and two nights in Southern Snowdonia in a luxury yurt at Graig Wen complete with wood-burning stove, beds and cooking facilities.

For adventure travelers who want to overnight in Wales’ great outdoors, Sierra Designs is providing the award-winning Lightning XT 4 tent (as seen in Backpacker Magazine), two Verde 20-degree sleeping bags, and Cyclone Jacket & Cyclone Pants.

This incredible prize is valued at almost $5,000.

For more information about the “Outdoor Wales: travel sweepstakes and to learn more about Wales as an adventure travel destination, do take a gander at www.travelwales.org.