Island called the "queen of the Pacific" in "Twenty Thousand Leagues Under the Sea" (6)
I believe the answer is:
tahiti
(Other definitions for tahiti that I've seen before include "Pacific island, the largest in French Polynesia" , "Polynesian island, chief town Papeete" , "Gauguin's Pacific isle" , "South Pacific island where both Robert Louis Stevenson and Paul Gauguin spent time" , "An isle in the South Seas" .)