To earn thy joy thou must sign the noble log preserving for all time thy valor. Take care for this may be easier spoken than fulfilled; for to scribe thy name one must first extract 'The Sword in the Stone'.
Upon completion of said task, take care to returneth thy saber to its proper perch. Simply align, release, and behold as the mystical magic of Merlin himself guides the battle-weary sword back to its home.
Have thyself a glorious time!
Photos of your quest are encouraged! However, refrain from posting pictures that reveal the "secrets" of the sword. This aspect of the cache should remain shrouded in mystery; solved only by those daring enough to visit first-hand!