According to a local friend, the body will be "prepared" on the island and then flown to the destination. He said it usually takes 1-2 days or more. As Carol said, the death happened on the island and not on the ship.
According to two of the people I am with who were within yards of the situation, the local emergency response team did very little as the two men who drug the body out of the water initially knew what they were doing and did most of the revival efforts. They had worked on the person for at least 20 minutes prior to the local squad arriving.