Unless it is posted its OK. Don't ask if its ok as someone will just say no. You don't ask if it's ok to play ball or toss a Frisbee. You can detect in all the Oakland County Oak Parks year round. Just don't dig holes or cut plugs. I started a permit system so the managers can tell ya if any area is off limits because of new grass. Permits are free an most times they don't want to be bothered with them. Water hunting is definitely NOT ALLOWED except for beach cleaners and they sift the sand for trash.
