My childhood visit to Yesanpo was unforgettable, but now that I'm older, it feels different. For those with limited stamina, I recommend taking the cable car up and down the mountain; there's not much scenery up there, mostly below.
I revisited during the National Day holiday. There were many great activities at the entrance, including various photo opportunities suitable for all ages.
It's a perfect summer retreat; you can play in the water, and the canyon is even cooler.