Indonesia location is geographically very strategic for trade since it is located between two continents and two oceans. This condition must be supported by inter-island transportation facilities and infrastructure, including proper harbors. The ongoing construction of Tourism Harbor at South Eastern Bali must have satisfactory stability as an initial survey shows high passenger traffic. The tourism Harbor will connect the hinterland to the Nusa Penida Islands, specifically Sampalan, Buyuk, Toya Pakeh, Jungut Batu, Tanjung Sanghyang, and Munjul Bias.Therefore, analysis of piles subjected to lateral forces is critical to ensuring the stability and serviceability of a jetty structure. This study aims to investigate the structural stability of Tourism Harbor by analyzing the deflection of the pile with configurations such as pile diameter (35 cm, 45 cm, and 60 cm), pile materials (concrete pile and steel pile), and the berthing force caused by two types of passenger ships (Bounty Cruise and Bali Hai II) under extreme condition of HWS (2.6 m). The analysis results indicate that an insignificant deflection can be obtained by using a large diameter pile and installing steel piles.