PHLOW has a fairly easy hunt. I think there's 7 boxes to be found but I couldn't find box 1 and 2! So please tell me if you manage to find the two missing ones! The coordinates are as below if you have trouble finding them:
Box 7 (A tattoo): 114/22/32
Also the store has some dollarbies and discounted stuff to grab too, so walk around while you are hunting. Good night!