The seaside of Wuliu Island, Busan, is located in the east of South Korea. You can see the sea when you travel here, but the seaside of Busan is not the kind of beach with delicate beaches, but the stone beach with messy rocks. On the beach, you can see the stones built into small towers and stone piles. I found that Koreans like this game very much. We also saw a lot of small stones like this on the beach in Jeju Island City. I don't know what the moral is. It looks quite fun.