I just made a whole map of the island in sisika, i also made a watchtower and a dungeon, but they are optional, so if you dont like them just delete them or dont put them in lml.
To install you will need LML, Portals and Map editor, put the stream folder in lml and the portals file in portals folder , and the prisonpeds file in maps i recommend to load peds manually to avoid crashings, any bug or problem report it to me
TO UNINSTALL just delete all of this^
Credits:
zick1999