On saltwater beaches, the Simplex + may give off more ground noise than some other metal detectors that are beach specific. It does feature a Beach Mode, which helps to cancel some of the effects of saltwater areas. As I mentioned, this feature works well in my area where the soil mineralization is remarkably high.  On freshwater beaches, the Simplex + will have no problem finding targets quickly and easily. Remember, this model is also waterproof up to 10 feet so if you want to shallow dive, the Simplex + is a great tool to take along!