Pula City Pools are much-anticipated public swimming pools opened in 2018 for swimming and water-polo clubs, as well as the citizens of Pula. The 5,900 m² complex consists of a swimming pool for water-polo and swimming, multifunctional and children’s pools, fitness halls, a café, and a sports shop soon to open. Our task was to conceptualize and design the visual identity of the pool, as well as the indoor and outdoor signage. The identity concept is based on conversations with professional and recreational swimmers, which inspired the idea of a line. It became our guiding principle, like the line on the pool bottom guiding swimmers to the finish. Upon entering, visitors are guided by signage to the main hall connecting the lobby with other facilities. Along the hall, a stylized water-shaped line serves as the basis for animated illustrations derived from standard facility icons. Additionally, water depth information is integrated into a large illustration of Pula’s most prominent sites. As visitors pass through, they witness the evolution of signage – from purely functional to enlivening the space. The project was declared Best of Show by the European Design Awards, and has also won the IIID Award, Design Intelligence Award, and has been awarded by the Croatian Designers Association.