You can easily spend a few days just wandering around Daocheng - especially if you go climbing the hill around the city, the arid landscapes are truly stunning. It's a worthy stop on your way, don't treat it just as a sleepover to Kangding/Shangri-La/ However, carry a stick or some stones in your pockets, as wild and freely roaming dogs are a bit of a danger, especially if you leave the villages and stay on your own.