Okayama Korakuen Garden

Kōraku-en (後楽園, Kōrakuen) is a Japanese garden located here in Okayama. It is one of the Three Great Gardens of Japan, along with Kenroku-en and Kairaku-en. Korakuen was built in 1700 by Ikeda Tsunamasa, lord of Okayama. The garden reached its modern form in 1863. We were nearby two days ago as we visited the Okayama Castle, but it was rainy so we saved the garden (en) for a sunny day like today.
The garden covers a total area of approximately 133,000 square meters, with the grassed area covering approximately 18,500 square meters. It's huge. The length of the stream which runs through the garden is 640 meters. It features a central pond called Sawa-no-ike (Marsh Pond), which contains three islands purported to replicate the scenery around Lake Biwa near Kyoto.
Here is a map of the garden:

And here are some photos: