In 2018, Welsh adventurer Ash Dykes walked 4,000 miles along China's Yangtze; 352 days, 8 million steps, wolves and bears later, he reached Shanghai

• Guinness World Records officially recognised the feat after Dykes began his expedition on August 26, 2018, and completed it 352 days later on August 12, 2019.
• Guinness estimates that the journey involved roughly 8 million steps.