Leisure on a beach. Two children with buckets explore seaweed covered rocks on a beach, dressed in clothing that protects against sunburn. They wear hats with neck protection, lycra body suits, and suntan lotion on their skin. Overexposure to ultraviolet (UV) light present in the sun's rays causes sunburn and can lead to skin cancer. Protection against the sun is especially important for fair-skinned people, who produce only small amounts of the protective skin pigment melanin. Photographed at Mornington in Victoria, Australia.