This report investigated the resilient strategies documented by 48 cities worldwide that were members of the Resilient Cities Network, focusing on how these cities perceived and addressed sea level rise. The results of the investigation were as follows. Their concerns regarding sea level rise extended to six areas: flooding, coastal erosion, shrinking of foreshore elements, inland flooding caused by tides, saltwater intrusion, and conflicts with coastal development. Many cities were leveraging natural infrastructure, such as wetlands, or were engaging in multi-stakeholder collaborations to implement countermeasures. However, there were also differences in approaches depending on regional characteristics and the progress made in each city. Furthermore, strategies to maintain connections with the sea were identified, categorized into three directions: enhancing accessibility to the coast to help people feel connected to the sea, increasing the value of coastal areas to strengthen the connection between cities and the sea, and preserving the connection between land and sea from the perspective of coastal ecosystem conservation. These approaches also included the process of creating challenging countermeasures. These findings were established as the preliminary framework for future research, and the tasks identified include further research into specific plans and subsequent developments not yet captured, as well as an investigation of cities that were not members of the network.