Kairakuen Garden is a famous public park located in Mito, Ibaraki Prefecture, Japan. Established in 1842 by Tokugawa Nariaki, it is one of the three great gardens of Japan. The garden is renowned for its beautiful plum blossoms, with over 3,000 trees of various species, making it a popular destination during the plum blossom festival in early spring. In addition to plum trees, Kairakuen features a variety of other plants, walking paths, and scenic views. The garden also includes a traditional tea house and a small museum, providing visitors with a glimpse into Japan's cultural heritage. It is a peaceful retreat for both locals and tourists.