From the bidding process three years ago to the grand opening of the XVIII World Water Congress on September 11, 2023, the organisers dedicated countless sleepless nights. From September 11 to 15, through meticulous congress arrangements and inspiring speeches, exchanges, and discussions, the congress had many high points. The 2-minute film unveiled at the congress' closing ceremony offers just a glimpse of this significant international water event. All participants lauded the Congress's success, and the organisers felt pride in reflecting on the past three years of meticulous planning. The XVIII World Water Congress successfully accomplished its agenda. Participants will undoubtedly cherish the countless memorable moments of the Congress, celebrate the knowledge shared, and take pride in contributing to the advancement of the 2030 Sustainable Development Goals.