HEP shots are now even required for school entrance. I had both of my boys innoculated before we went, and was told by the doctor they would need it for school anyway.... So I was glad I did. Better safe than sorry. We ordered a couple cases of bottled water for our fridge, but not because the tap water was bad. We just wanted portable water, and the little sip spouts are so much more convenient. The San Pedro school kids get bottled water in plastic pouches, and some tours offer these to the tourists. We found them a little awkward for the kids. We made coffee in the morning with tap water and we did just fine. If you're going to be in the jungle at all, I recommend the malaria pills.