Other things to look for while beach hunting are cuts on the beach. What I mean by cuts: Cuts are areas of the beach where the wave actions from strong tides or storms have cut sand off the beach. There may be areas that have ripples and troughs, some may still have a little water in them. Those are good areas to search even right above them and right below them. The areas where more sand is removed, the better chance you will have hearing those deep targets that may have otherwise been out of reach.
There is no fool proof way to walk on the beach turn on your machine and dig a good find, but you can put the chances in your favor by hunting the common areas and reading the beach. Another good area to focus on is the natural funnel areas. What I mean by that is, most beaches have access areas such as a board walk. They don't want you on the dunes or disturbing the sea oats, this makes natural funnels where people must migrate to when exiting the beach. Those natural funnels can produce good finds as well, people start digging in their pockets as the funnel area decreases because they are getting close to their vehicle. Some people tend to put rings and valuables in their pockets for safe keeping but running your hand in your pocket to pull out a set of car keys produces a tragedy if you have placed your ring in there too.
The beach is ever changing, when I am on vacation I spend somewhere between 8 to 10 hours a day on the beach detecting for a solid week. You can head to the beach, lets say at an early morning low tide and spend 4 or 5 hours detecting and quit with a handful of pull tabs and a few coins. After high tide has come and gone, you can head back to the beach for the evening low tide and dig handfuls of coins and jewelry to go with it. You have 2 high tides and 2 low tides every 24 hours so the beach is ever changing. Everyday you have a new group of people along with the regulars playing on the beach which in turn gives more chances for items to be lost and retrieved by you.
If I could give any advice concerning when to hunt, it would be ( 2 hours before low tide and persistency) There is one other thing, a machine that will punch deep in the salt water sand to see those targets. In my honest opinion, besides using a Pulse Induction machine the Minelab Explorers and the E-Trac can not be beat. No single frequency machine can penetrate the salty sand better. The Excalibur is a great machine as well but if Minelab made a waterproof E-Trac there would be no use for an Excalibur.
BCOOP