If you want your tropical island covered in green foliage from mountain peak to sandy shore, Kauai is your Hawaiian Island of choice. Most of the other islands have pronounced dry sides where paddle cactus may be growing. Kauai seems to be pretty much green all over. Could be that is where the nickname "the Garden Isle" came from.
Kauai has the prettiest harbor in the islands. Nawiliwili Bay is surrounded with forested highlands and is what you think a harbor on a tropical isle should look like. There are a couple of harbors in French Polynesia that are dead ringers for Nawiliwili Bay.
Wild chickens are common here. Local legend has it that a typhoon 15 years ago tore open coops and the chickens got free. There being no local preditors, they flourished and multiplied. Some of them look suspiciously like fighting cocks, and probably are their descendants as cock fights are staged here.