YSK that your dogs should never be taken off the leash when camping or hiking unless they are under the strictest of voice control and you should always pick up their waste.
from /r/YouShouldKnow
在露营或徒步旅行时，除非是在最严格的声音控制下，否则绝不应将您的狗从绳索上取下，而且您应始终捡起它们的粪便。