So I have gone to the exact spot that a treasure chest is at, watched a walkthrough and on the video the guy went to the exact same spot and was able to dig it up whereas I cannot. It is at 749, 625 and unlocks the serpent figurehead. This is really pissing me off cus am going to the exact spot where the video says and it won't give me the option to dig it up. WTF?!?!?!