I grew up and started detecting CA beaches back in the 70's then spent 8 years a mile from the beach in Stuart, FL (east coast). One thing that I've found over the years is that many beaches are visited mostly by the locals. The Locals are smart enough to not take their valuables to the beach. For good detecting, you need a beach that gets lots of tourst traffic and it needs to be summertime for the most part. Some of the best detecting can be during winter storms but this is hit or miss also. I've hunted winter storms that didn't produce and others have been fantastic but you usually have to live close to the beach and hit them during the storms to cash in (wet sand). For the inland hunter taking a vacation to the beach, I still think your best chance for success is knowing your detector well, having a detector that works well on the beach, hunt the dry sand with a large coil for the maximum coverage, hunt in the afternoon/early evening or at sun up, hunt during beach going season, hunt the tourist beaches, hunt the blanket line, fire rings, snack bars and paths or stairs to the parking lots, and use just enough discrimination to eliminate iron nails, dig everything else. Leave the wet sand to the regulars that know their beach.