ISB, you should have what the call an International Health Certificate to bring your pet down there. If your vet says that document doesn't exist, like mine did, he is wrong, as the border agent for entry into Belize showed me a bunch of them. I had to pay $50 to get her in there because I didn't have that form. What I did have was good enough in every other country, and that was a dated sheet from the vet's office showing all the vaccinations she got before we left. In my experience, if they ask about the dog at all, they just want to see some paper and not much else, but if I did it again, I'd get that certificate. And make tons of copies..