Junction and Tosu Interchange Nagasaki Expressway: Tosu Junction and Tosu Interchange Ōita Expressway: Tosu Junction National highways Route 3 Route 34 Route 500 Prefectural roads: Tosu-Asakura Route 14 Kurume-Kiyama-Chikushino Route 17 Saga-Kawakubo-Tosu Route 31 Scenic and historic places Chikushi family Katsuo Castle ruins Mount Asahi castle ruins Best Amenity Stadium Sightseeing spots Azumaya Kawachi Dam area Torigoe and Yamabiko mountain retreats Shimin no mori Kawachi swimming pool Mount Asahi Park Mount Kusenbu Kyushu Nature Walk Nakatomi Commemorative Medicine Museum Ochōzu waterfall Numakawa swimming pool Saga racecourse Tashiro Park Tosu Premium Outlets Festivals and events Tosu Yayoi Matsuri (last Sunday of March) Hana no hi (May 4) Tori no hi (Sunday between May 10 and May 16) Matsuri Tosu (last Sunday of July) Tosu Yamakasa (first Saturday and Sunday of summer vacation) Doyō Yoichi (Saturday night market, end of July) Sports Sagan Tosu - in J. League football Hisamitsu Springs - in V. League volleyball Yuka Kobayashi - in Girls Keirin keirin Notable people from Tosu Koichi Ogata - pro baseball player Masayoshi Son - businessman, founder of SoftBank References External links Cities in Saga Prefecture