Minelab Vanquish beach metal detecting, listening for very faint signals which can mean small items buried at depth, these are the best tones to listen for when metal detecting wet sand, You have to make sure you have the SENSITIVITY Set CORRECTLY on the Minelab Vanquish, so you can actually hear the quiet tones and not falsing as you swing the coil over the beach, do you have the sensitivity set to high on your detector?.