So, I want to introduce you to a new external cheat that contains only teleport functions.
Grand Theft Auto 5 (GTA V): Cheat (SunShineSilver – 50 teleport points) [1.40] Free Download
You can teleport to any point that is already in the list of this teleport, or specify the desired coordinates.
You can see a screenshot with all the locations above … if it is not there, I will post it in the comments