There are tours available, but participants are required to register in advance.
The tours are scheduled twice a day from Apr to Nov: Tue - Sun and holidays. There are no tours from Dec to Mar.
Please, refer to the official website for further information.
Adult: JPY 3000
Children (13-15): JPY 1500
Wikipedia https://en.wikipedia.org/wiki/Akashi_Kaiky%25C5%258D_Bridge
Official website http://www.jb-honshi.co.jp/english/bridgeworld/index.html
Phone +81 78 784 3396
Coordinates 34°37'0.077" N 135°1'15.32" E