Over the years theres been a few ways which no longer work but maybe this can give you some ideas on how you might be able to make this happen. There was a point when random events could teleport you there, there was another point in time where you could teleport to stars (some stars would land on ape atoll), there was once a cft you could preform and eventually when it was over you would teleport back to when the bug began ( this took a lot of planning because you had to set it up while you were on the island ), There was also a no clip that would allow you to walk across the water to the island. Its been many years since these bugs have been around but its possible theres some work around that you could figure out.