The C to Sea Project is a vibrant informational portal dedicated to maritime affairs in Japan. Launched in the summer of 2017 under the leadership of the Ministry of Land, Infrastructure, Transport and Tourism, this initiative aims to enhance public engagement with the ocean and maritime activities. It serves as a vital resource for maritime businesses, educational institutions, and organizations involved in maritime promotion, providing support through information dissemination related to events, publicity, education, and research.

The project emphasizes the importance of fostering a deeper understanding and appreciation for the sea among children, youth, and the general public. By facilitating opportunities to explore the ocean, board vessels, and learn about maritime culture, C to Sea seeks to create enjoyable and relatable experiences. Their mission encapsulates connecting consumers, citizens, and children while promoting cooperation and cultural integration through maritime encounters. C to Sea is committed to making the sea a familiar and cherished aspect of daily life for all.