Baku Seaside Boulevard, officially designated as the Seaside National Park, is a prominent public promenade stretching along the Caspian Sea coastline in Baku, Azerbaijan. Established in the early 20th century, its development was significantly influenced by the civil engineer Mammad Hasan Hajinsky. The boulevard underwent major expansions and renovations in the 21st century, extending its length to approximately 25 kilometers, making it one of the longest urban parks in the region. This national park serves as a central recreational hub for both residents and visitors, featuring a diverse collection of flora, including numerous imported tree species. The boulevard is home to significant cultural venues such as the Baku Crystal Hall, which hosted the Eurovision Song Contest in 2012, and the Baku Ferris Wheel, offering panoramic views of the city and the Caspian Sea. It also provides access to the Baku Boulevard Station of the Baku Funicular and is a gateway to the Baku Port. The park's design incorporates musical fountains, various sculptures, and well-maintained walking paths. It is a venue for national celebrations and public events, reflecting its integral role in the social and cultural life of the capital.