6. Don’t Drink the Water, ‘Montezuma’s Revenge’ Is Very Real
Let’s start with the obvious. Beyond Cancun and the up-scale resorts/restaurants that use purified water filtration systems, the “don’t drink the water” advice is sound. Stick to bottled H2O – and plenty of it. You need to stay hydrated in this hot climate. Bottled water is cheap and everywhere, so stock up and swig frequently. Make sure the bottle you buy is sealed and not just refilled from the tap. If you can, it’s best to brush your teeth with bottled water, too. You know, just to play it safe.