I have brought dogs here, one very big dog. Its very easy, the cost is only $12.50. Never left with one but people do. The Ladies at Belize Dive Services will go out of their way to help you. I have friends who fly back and forth regularly with their small carry on dogs, and I am sure they are not quarantined, vet certificates a must, but thats easy also. One thing, alot of the dogs here seem to be strays, but actually belong to someone, true they would be better off with a full time caring family, Kathy and Dawn pretty much know the whos who of all the dogs here.