There are seasonal light ups. It has started since 2006. Many people enjoy this light up, especially the Halloween light up is the most popular one. The water fountain will be lighted up in the evenings.
Impression I thought that it was the park which Japan could boast of in one's town which grew up and checked the reason that checked an imperial villa park. It was good to understand that I checked it and did not know it. It was hard to translate it into Japanese for English.