The 18-kilometre-long (11 mi) Rize Valley (日则沟) is the south-western branch of Jiuzhaigou. It contains the largest variety of sites and is typically visited first. Going downhill from its highest point, one passes the following sites:
The Primeval Forest (原始森林) is a preserved ancient woodland. It is fronted by views of the surrounding mountains and cliffs, including the 500-metre-high, blade-shaped Sword Rock (剑岩).
Swan Lake (天鹅海) is a 2250-metre-long, 125-metre-wide lake named for its visiting swans and ducks.
Grass Lake (草海) is a shallow lake covered in intricate vegetation patterns.
Arrow Bamboo Lake (箭竹海), covering an area of 170,000 m2, is a shallow lake with a depth of 6 m. It lies at an elevation of 2,618 m, and was a main feature site for the 2002 Chinese film Hero.
Panda Lake (熊猫海) features curious color patterns of blue and green. Giant Pandas were said to have come to this lake to drink, though there have been no sightings for many years. The lake empties into the multi-stream, multi-level Panda Waterfalls, dropping 78 m in three steps.
Five Flower Lake (五花海) is a shallow multi-colored lake whose bottom is criss-crossed by ancient fallen tree trunks.
Pearl Shoal (珍珠滩) is a wide, gently sloping area of active calcareous tufa deposition covered in a thin sheet of flowing water. It empties into the famous Pearl Waterfalls, where the shoal drops 28 m in a 310-metre-wide broad curtain of water. A scene of the television adaptation of Journey to the West was filmed there.
Mirror Lake (镜海) is another quiet lake casting beautiful reflections of the surroundings when the water is calm.