Giant hole? Well, me friend. You are lucky you have found me. This is what you must do with the giant hole. First, Eat a corn dog, then through a block of sand in the hole. Eat a burger, than through a block of slush. Finally eat two corn dogs and thrown a block of pearsand...
Another option is covering the entire hole with crimsandstone wall...wait. Those are unobtainable. Ok...I have no clue.