However, Yan Fei soon realized that his success must be due to good luck, as he had encountered a period when the sea was calm and free of large waves and storms. He had made preparations beforehand, building the Yellow Sand Dam to be very spacious. The height from the sea surface was even 5 meters, with a width of 10 meters; with such formidable data, the Yellow Sand Dam could withstand large waves and winds for some time without breaking. Moreover, with his ability to perform Yellow Sand Teleportation at any moment, if he noticed any issues with the Yellow Sand Dam, he would immediately transport a large amount of yellow sand for repairs and reinforcement, ensuring that his efforts were not wasted.