Should coral become embedded deeply see your doctor as soon as possible to have it removed. Deep cuts should be attended to by a physician to avoid the risk of infection. If you're tide pooling or reef walking wear protective foot gear. Shore breaks are unpredictable and dangerous. They have caused many serious neck and spinal injuries to both experienced and inexperienced bodysurfers and swimmers.
Small waves can be very dangerous, too.
Be sure to ask a lifeguard about the wave conditions at the beach you may be attending. Be especially careful when the surf's up and conditions at the beach you may be attending. If you're uncertain of your abilities, don't go into the ocean during high surf, heed all posted high surf warnings. Strong currents frequently accompany high surf and rapid tide changes and can be recognized as a turbulent channel of water between areas where waves are breaking. Wave one or both hands in the air, and scream or call for help.