Climber Mark Roberts experiences one of the most terrifying moments of his life after plummeting 100ft down the side of a Welsh mountain. <br /><br />Watch more videos here <a class="link" rel="nofollow" target="_blank" href="http://www.videobash.com/">http://www.videobash.com</a> <br />Facebook page <a class="link" rel="nofollow" target="_blank" href="http://www.facebook.com/videobashfan">http://www.facebook.com/videobashfan</a>
