It was closed to start renovation work in September 2020 and reopened on April 20, 2021.

[3] Around the same time as the opening, Itabashi Ward signed a "Joint Declaration of Friendship" with the government of Penang, Malaysia.

An attached Malaysian coffee shop is open to the public as a rest area on weekdays.

[6] The aquarium inside the botanical garden is home to fish species from the deep sea, coral reefs, and Asian tropical rainforests.

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