Outdoor adventurer Mark Sky takes a brief respite from his human-powered trip from British Columbia to Argentina to drop into the studio and speak with Doc. Settle in and buckle up as Mark shares stories from the trail and from his past, including adventure racing in Fiji, naked bungee jumping, traveling through cartel country, and biking through the California and Arizona deserts in 110-degree heat. With nine months of this current adventure under his belt, Mark still has plenty of excitement in front of him, including a 600-mile kayaking section and a summit of the highest peak in the Americas, Mt. Aconcagua. Epic guest, epic episode.