Ryutan

Ryutan is a manmade pond constructed in 1427.
According to the oldest epigraph in Okinawa that stood in this area, the Ankokuzan Jukabokuki, an official named Kaiki traveled to China and studied landscape gardening and returned to build the Ryutan pond.
Banquets with entertainment on boats were also held here to welcome the investiture envoys, or the Sapposhi, sent by Chinese emperors.