Can you run from Seoul to Busan? This person did, twice

For most people, getting from Seoul to Busan means roughly 2 1/2 hours seated on the KTX. Isaiah Addison, better known as Zay, went the long way: on foot. The long-distance runner, freelance model and content creator set out from Seoul on Aug. 8 and covered nearly 700 kilometers over 10 days before reaching Busan — the equivalent of more than 16 full marathons. Data from his high-endurance sports watch with built-in GPS shows 683.5 kilometers of recorded activity between Aug. 8 and 17 over the c