Have you ever been to Jamaica?  It's an island in the Caribbean
I have not but I would be excited to go to Jamaica please tell me more?
It's the 3rd largest island of the Greater Antilles and 4th largest in Caribbean.  It's a lot of fun and beautiful!
What is the level of development there. is it a third world country?
It's not 3rd world but the region has more than 700 islands, islets, reefs and cays.  Have you been to any of the islands?