The story: The Li River winds 83 km from Guilin to Yangshuo through the karst landscape that inspired Chinese painters for centuries β and that appears on the back of the 20 RMB banknote. The classic 4β5 hour cruise takes you past hundreds of sheer limestone peaks, bamboo groves and water buffalo, on a river that's been called the most beautiful in China since Tang-dynasty poets said so.
Why it's a must-see: This is the single most iconic landscape in China β the mountains-and-mist scene you've seen in a thousand paintings, in person. The cruise is comfortable (you sit inside with a viewing deck), and the scenery changes with every bend: peaks named after their shapes, fishing villages, and the famous 'Nine Horses' cliff.
π‘ Kat's tip: Book the cruise from Guilin (from ~360 RMB, includes transport to the dock). Bring snacks and binoculars. In the off-season the river can be shallow β check the water level before you book; the alternative is a bamboo raft from Yangdi.