Altogether there are over 7,000 odd islands that make up the Caribbean, but bearing in mind that the vast majority of these are reefs and cays the number soon falls. There are 115 main islands....
vanuatu
willis island
There are lots of coral reefs in it.
The Battle of the Coral Sea was history's first clash of aircraft carriers. Airplanes did all of the fighting...warships never even saw one another.