Unlock all islands on gta san Andreas?

Do the story missions...

Another way is to use a cheat code that locks your wanted level wherever it is....

the code is (only ps2) circle, right, circle, right, left, square, triangle, up.....

after you can fly a plane to the other islands.

and for PC u simply enter ( testeducationalskills) and whatever u do no cops will come after you, that way u can cross islands without cops on you tail.

My answer is exactly the same, but the only information they didn't tell you, is that you have to do circle, right, circle, right, left, square, triangle, up... only do the cheat once