Amerigo was a fictional island. Herman Wouk lived on Skyline Drive. He frequented island hotels and lived the island life to get his stories. Bill Dowling of Carib Beach dined with him often. He spent time at Pineapple Beach Hotel as well. Since Amerigo was fictional, a lot of hotels were used for the impetus of that hotel. There was a hotel on both Hassel and Water Islands at the time. He may have visited them as well.