? At the Ocean, stay in the dry sand. Ocean beaches have black sand and salt build up that will drive you and your machine crazy. The Ace250 also is not a water machine so do no get the control box wet. Do not hold your machine with the coil up after it gets wet as the water can run down the shaft and find it's way into the control housing. Water is sneeky. The ACE250 is an excellent machine. Have found lots and lots of fun stuff with it. Remember it is the fun of the hunt not always what you have found. One man's trash is anothers treasure. HHHH