In fall, the foliage of the trees and shrubs is reflected in the ponds, and one can see "inverted fall foliage". This inverted fall foliage has been lit up [ja] at night every year since 1999[2].
Get off at the Baden Park SOGI bus stop on the Toki Community Bus [ja] Toki Nanboku Line on weekdays, or the Donburi Kaikan Baden Park Line on weekends.
In the fall foliage season there may also be a temporary bus that runs from Tokishi Station.
References
^"曽木公園もみじライトアップについて". 曽木公園もみじライトアップ実行委員会公式HP (in Japanese). 曽木公園もみじライトアップ実行委員会. Retrieved 11 February 2020.