RodPad
Premium Pilot
As noted above DJI GO 3.1.2 contains a bug that can cause the home point to be reset to an incorrect location. Your Phantom should have landed here:
Thanks @msinger,
I just got back online, I figured he would find it if wasn't in the drink.

All the data showed it was heading that direction. Like in other fly-aways, I was going to try to figure out how much battery was left.
I woke up this morning, and thought, duh, it told us the distance of the new Home Point. OMG

Rod