Final answer:
Cabeza de Vaca's captors were appalled by the hospitality of the Indians of Florida.
Step-by-step explanation:
Cabeza de Vaca's captors were particularly appalled by the hospitality of the Indians of Florida among the castaways. According to Cabeza de Vaca's account, the Indians in Florida were friendly and welcoming to him and his men, providing them with provisions and gifts.
This was in contrast to the treatment that Cabeza de Vaca and his fellow Spaniards had witnessed and experienced from their own countrymen in other parts of the Americas.