Tell your dad(or whoever will be driving you up there) to park his car by the yellow gate and follow the path.At some point the path is going to split. If you take the left one, it'll take you to the ladder and you'll see the fence. It's OK, you're not lost. Just follow the fence and you'll see a tree with a yellow sign on it. That's the deadline. Pass the deadline, and you'll be able to see more paths that will lead you to the holes.
If you want more adventure; Stop by the white gate instead and follow the path...
Good luck...