South Korea’s first National Marine Museum has grappled with the corrosion of outdoor signs, deterioration of facilities, and aging interiors. To counter these challenges, the museum adopted an intuitive signage system for seamless navigation, and chose durable, discoloration-resistant facilities that blend with the natural surroundings, offering visitors a renewed journey through marine history and conservation. Designed by Miran Seo, Kyungwon Ryu, HyunJeong An, Sunhee Kim, Keonil Ko, and Me-rae Kim of Mecca Co., Ltd.