Like the previous year, players again were able to bring buckets of sand to the crater, limited to 20 buckets a day. A Treasure Hunter promotion, Build A Beach also ran during the preparation. A big mystery box could be received from Reyna after delivering sand to her on each of the five preparation days. Players had to claim their big mystery boxes on 15 August before the game update. The rewards from the mystery boxes and big mystery boxes were updated for this event.