I will find the Holy Grail (no SMS or registration required).

The exact location where it is buried? Or the exact area where it is buried? If it's the latter, then it's not difficult to determine it by the mushroom (and it's good if there is one), and sometimes you need to open several obelisks to find at least some clues. P.S. If you show the exact location, I think all the excavations will stop, which many already consider to be cheating.