High above a small sunkissed valley in the Swiss Alps, a flock of paragliders float silently above the treetops.
Down below, it's just as quiet. Aside from the whoosh of the occasional breeze or the gentle crashing of glacial stream that rolls through the valley, it's almost completely still. Peaceful. Beautiful.
But since Monday, that tranquility has been undercut by the sound of 45 Welsh rugby players panting, grunting and blowing as they're put through their paces in a gruelling World Cup training camp.
