Obyan "Ob-john" is a wonderful site with a lot of life and great vis. It is best done at high tide for an easy entry and exit. Like most Saipan shore dives there is a rope to help when the rip is strong. The best diving is to the left after you reach the end of the rope. It goes over lots of fingers and sand channels. If you follow the sand away farther from shore you will find lots of Garden Eels. Octo's are very common.