To mark her 10,000th day alive, 27-year-old Peng from Guizhou climbed China’s Five Great Mountains over five days, hiking in Shaanxi, Shanxi, Shandong, Henan and Hunan between 23 and 28 September. She tracked progress with Liang Bu Lu, slept on cross-country trains, spent about 4,000 yuan, briefly used cable cars on two peaks, and recovered after mild weight loss.