The Art Biotop Water Garden is the symbol of the “Botanical garden Art Biotop project” collaboration of Nikishimo Co.,Ltd and Takara Leben CO.,LTD. It was born from the memories of the forest, paddy field, and grasslands of this area. There are 318 trees with 160 ponds between them to create a world where the wisdom of humans and nature intersect. The Water Garden has attracted attentions from around the world since it was introduced as part of an exhibition in 2018 called Junya Ishigami, Freeing Architecture at the Cartier Contemporary Art Foundation in Paris. In 2019, Junya Ishigami also won a national art award presented by the Ministry of Education and Science.