Umi no Hi, also known as Marine Day. This special day is observed nationwide, especially in coastal regions. People commemorate Umi no Hi by enjoying beach outings, participating in marine sports, indulging in seafood festivals, and watching mesmerizing fireworks displays. The significance of Umi no Hi lies in its tribute to the ocean’s abundance, maritime traditions, and Japan’s deep connection to the sea, which plays a vital role in both its culture and economy. This national holiday was established in 1995 to honor these aspects.Umi no Hi holds a unique place as it encourages the appreciation of marine conservation and the adoption of sustainable practices. In addition to the fun-filled celebrations, events like beach clean-ups, boat races, and cultural performances are organized to promote these values.