*Know local weather conditions before you go on a dive. Make sure the water and weather conditions are safe. Water conducts electricity. Stop swimming, boating or any other activities on the water as soon as you see or hear a storm. Getting struck by lightning isn`t pleasant and heavy rains can make certain areas dangerous. *Protect your skin by wearing a waterproof sunscreen with a sun protection factor containing a high rating such as 15. *Drink plenty of water regularly and often even if you do not feel thirsty. Your body needs water. Know the signs and symptoms of dehydration. *Know the signs and symptoms of heat exhaustion and emergency treatment if you are diving in hot weather. *Know the signs and symptoms of hypothermia and emergency treatment if you are diving in cold weather. *Wear sunglasses to protect your eyes against the suns damaging rays. Choose sunglasses that absorb at least 90 percent of UV sunlight.