What exactly do the Chinese see in NK to visit??? Do they get to see the Gulags and watch an actual torture event? Watch a nuke missile launch? What does the little fat punk possibly have there to go see?
Chinese visitors to NK usually say it is the primitive nature of NK that attracts them, and reminds them of China from a generation or two ago. Probably their tourist money goes a lot farther in NK.
And note that South Korea attracts far more Chinese tourists than NorK.