Kawachi Fuji is a private garden located in the city of Kitakyushu, Japan. The garden is home to a number of stunning 150 Wisteria flowering trees. The main attraction of the garden is the tunnel formed of wisteria flowers. Wisteria is a climbing vine with flowers of various colors: white, blue, purple, violet, pink. The best time to visit this amazing natural tunnel is from late April to mid May