what are the caribbean islands made up of
If you are trying to ask what three island groups are the Caribbean islands in, then the answer is the Greater Antilles, the Lesser Antilles and the Bahamas.   Different is â¦ lands are made FROM different things: volcanic mountain tops and coral are what they are made FROM.f you are trying to ask what three island groups are the Caribbean islands in, then the answer is the Greater Antilles, the Lesser Antilles and the Bahamas.   Different is â¦ lands are made FROM different things: volcanic mountain tops and coral are what they are made FROM.