Chris and Will speak to Ian Stewart, founder of Trail Running Scotland - a company offering various skills courses between off-road running and mountaineering, as well as a range of guided runs across Scotland.

Cue a lively conversation about running a Bob Graham Round for a stag do, staying safe and running smart in the mountains, and Ian's monstrous "Cairngorm Parkrun" completion - a single continuous round of every Munro in the Cairngorms totaling over 400 kilometres in length and achieving over 20,000 metres of vertical gain. This is one to listen to if you're keen to get into mountain and trail running but you're not sure where to start.

Less pressingly, the boys discuss Western States, and Chris finally has his answer to last week's "big hitter" question...

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