Orange County?

Why not hit the beaches? The best time would be early morning just as the sun rises or an hour or 2 just before sun set. City parks are also a good place, just check the local laws and make sure it is not against any rules. I would also try going to the mountains and detecting in some of the shallow mountain streams. It is said that only an estimated 10%-15% of the gold has been found out there. Good hunting.

Orange County, California is a GREAT place to detect for one reason, POPULATION. Good places include busy Softball fields, especially in the outfield where a position is played, soccer fields, parks after a busy weekend, especially the 4th of July, beaches (around fire pits, volleyball courts, around life guard towers), campgrounds up in the Cleveland National Forest. If you go out to the Inland Empire, there are more great places to detect. Riverside has a very large soccer complex, hit the sidelines areas where parents cheer on the kids. Back in Orange County, along the Santa ANA River Bed trail when coins and jewelry get lost along the side of the trail. The list goes on and on! Good Luck!