On my way from Lijiang to Shangri-La I'm planning to visit: Shigu (Stone Drum) Town, First Bend of the Yangtze River, and Tiger Leaping Gorge.

I will have one more day in Shgrila and am wondering what else i can visit? Someone recomended: Bita and Shudu Lake, and Gedan Songzanlin Monastery.
Is there anything else worth to visit?