The same waves that can sneak up on you at the beach can also cause serious trouble if you are on rocks or jetties. Being on rocks and jetties that are elevated above the surf can make you feel like the waves can’t touch you, but those few very big waves may be able to overtop the rock or jetty and knock you into the ocean. The safest action is to stay off rocks and jetties altogether, but if not possible, remember to stay back and never turn your back on the waves.