Where is gampe's grave in Zelda ocarina of time?

As an adult, go back to kakariko village and go to the graveyard in the back. If you go to the graveyard, there should be a tombstone with a small plant patch to the side of it. It's the only one with this feature, so it should be easy to distinguish from the others. Get behind the tombstone and pull it, then jump into the hole. You will be asked to race the gravekeeper(as a ghost) and if you keep up with him, go through all the right paths, you will be rewarded at the end with a hookshot.