That island that I called cuba due to the map position, (Not exactly, map editor doesnt allows you to see the north or the south, when I started building it, I though I was doin' it at the south, but when I finished I saw the coast and, no.  )
This island includes a city and two buildings with lod.
You can go to the island by skimmer, boat, seaways cheat, comeflywithme cheat, helicopter.
This island is placed at the map bounds border, so I can't place more objects at the east part of the map.
I recommend you to use seaways cheat to go, without destroying the car, because there are roads for cars.

The second release may include more city and an airport.
Check out my website, http://8ff306cf.tinylinks.co, for my mods! (Not all).

*EDIT*
The second release includes a little beach, a few buildings added, and an airport! 


Enjoy!

P.D (I made this mod with a Toshiba NB250 netbook