FYI, the Heart of Valencia boulders are along the riverside... Ah ok sir, I thought it was located above the mountains.
Re: your dig site, How can you be sure that what you found in your dig site is a rock treasure marker or just an odd shape rock? Of course outside the site we found markers but not the heart sign.
If you are the grandson of the Japanese who buried that treasure. How can you locate the treasure if the rock marker is buried? Sir, according to my mentor if a site is positive one, you can't see more signs outside the site. Of course if I am the son of that japanese, why should I follow the decoded sign while I can ask to my family a detailed map.
Its common sense that JAPS TREASURE MARKERS ARE ABOVE GROUND so that when the Japs who buried the treasure inform their grandson to go to the Phils and relocate the boulder they carved as treasure marker in a certain barrio in the Philippines they can easily relocate it.
If the rock marker is buried underneath it would be impossible for the foreigner Japs to relocate the treasure. Gets mo? Meaning I doubt if the alleged rock marker you found in your dig site is treasure marker. Well, It's your opinion, but as far our concerned and my mentor, if we continue the digging it's our call to take the risk or leave. But, if we try to follow the wire be sure not to fall otherwise it's our end. And I read also the post of sir db if the flower sign better leave or take a risk.