The cache is located in the area between Belfield and the Stillorgan Road. Please ensure you do all the things that a person of average intellect (or above) would do to keep themselves safe during the search. Should you choose not to, then it is only fair that you assume full responsibility for any nasty outcomes that may result. I certainly won't.
That said, enjoy the hunt. The location can be approached from the slip road (which I did with the bike when placing), or through a gap in the hedge from Belfield. But I suspect that over time, this gap may heal. While this is a more direct approach, you should avoid doing any damage.
And do ensure that your basic kit of pen and tweezers is to hand when you make landfall at GZ, as you may not be able to log a find without them.