Health and Safety
The first thing that you must be warned of before you enter Pompeii are the notorious pickpockets. These thieves are well known for sticking their hands into your pockets and privaThe best way to prevent that from happening is to put valuable items under your clothes and in your belt, where they are completely out of reach. That was how the term 'money belt' was coined. You also have to protect yourself against your own carelessness, for instance, losing your passport.
The final thing that you have to be aware of is Pompeii's climate. In summer, Pompeii is usually hot and humid and apparently, the ruins are not air-conditioned, therefore, don't over-schedule yourself and you might prefer to bring a bottle of water with you or something that quenches your thirst so that you won't have to purchase it in the shops within the gates of Pompeii as they are just out to make a profit.