Midnight Mountain Marathon
This is no ordinary marathon. Set in the breathtaking Brecon Beacons, it's a tough, beautiful, off-road event, through forests, over streams, past waterfalls and up mountains. The difference between this and any other mountain marathon is that you start at 5.30pm and have to finish before the midnight cut off. And with Pen-Y-Fan, the highest peak in South Wales, and a few others in the way, that may not be as easy as it sounds.
Also half marathon, and the BRUTAL Bergen which involves completing the full or half course with a pack (35lbs for men and 25lbs for women)