Know local weather conditions before you go on a scuba diving vacation.
Make sure the water and weather conditions are safe before you dive. Water conducts electricity so stop swimming, scuba diving, boating or any other water activities as soon as you see or hear a storm. Getting struck by lightning isn't pleasant and heavy rains can make certain areas dangerous.
Also, protect your skin by wearing a waterproof sunscreen with a sun protection factor containing a high rating of at least SPF 15. The sun is much stronger in most tropical locations where scuba diving and adventure travel is popular, and water intensifies the sun's rays with reflection, so the more the better in terms of sun screen and sun protection.