The grounds of the royal family's Isan home , 14km south of Sakon Nakhon, are open to the public when not in use. It's quite a modest residence compared to some of their other palaces, but the gardens are beautiful and peaceful. You can only walk around the main grounds, but cars can go to the elephant corral. Visitors are not permitted to wear shorts above the knees, short dresses or revealing tops. Buses cost 20B and take 20 minutes.