Historical Spots

PLACESHistorical Spots

Hario Radio Tower


Sasebo Port Tawaragaura Peninsula/Kougozaki/Hario Island

Built in 1922, the only long wave communication facility remaining in Japan.

The three towers made of concrete, standing near Saikai Bridge. It is said that these towers relayed the cipher that initiated the Pearl Harbor attack which set off the outbreak of the Pacific War. These towers with the height of 136 meters which stand on the vertex of a 300 meter-equilateral triangle took five years to built starting Taisho 7(1918).

Harionaka-machi, Sasebo, Nagasaki pref.
Phone number
0956-22-6630(Sasebo Tourist Information Center)
Business hours
9:00AM - 12:00PM / 1:00PM - 4:00PM
New Year Holidays
Admission free
By car/ Approx. 20 min. from Nishikyushu Exp. Way Daito IC.
By bus/ 50 min. from Sasebo Bus Terminal by the bus bound for "Saikaibashi Corazon Hotel" or "Saikaibashi Nishiguchi". Get off at "Takahata", 30 min. on foot.