We can infer from the passage that …………

Holiday beaches are like huge barbeques where people lie like burgers on a grill. Many people do not realise the dangers of baking themselves in the sun. By following some sensible advice, holiday makers can achieve a perfect tan, yet avoid such dangers as sunburns and even skin cancer. The sun is at its strongest between 11 am and 3 pm, so sit in the shade at this time. Babies should be kept out of direct sun, and children should wear sun block and a hat. Remember to reapply sun cream regularly, particularly after swimming. Sunglasses are not just a fashion accessory. They provide vital protection from the sun's rays. Never wear sunglasses with cheap lenses; they do more harm than good. Summer is a great season, but be sensible!