Tap water is usually safe to drink on Boracay. Order seafood only at reputable establishments, as it's not always as fresh as it looks. The World Health Organization (WHO) recommends vaccinations for travelers against diphtheria and tetanus, hepatitis A, and typhoid. Malaria is not a problem on Boracay, but is on some surrounding islands, such as Palawan. Boracay is in the tropics and the sun can be very strong. Apply sunscreen liberally.