The height of the tower, 138 meters, is a deliberate wordplay on the city name 'Ichinomiya' using Japanese number readings (ichi-san-hachi).
The two arches represent the confluence of the Kiso, Nagara, and Ibi rivers, which are central to the geography of the Nobi Plain.
The tower is the centerpiece of the 138 Tower Park, which covers a massive area designed for seasonal flower displays and recreation.
On clear days, the observation deck offers sightlines reaching as far as Mount Ibuki and the Nagoya city skyline.
The structure serves as a prominent navigation landmark for the surrounding river basin area.
Twin Arch 138 is a 138-meter tall observation tower featuring two distinctive intersecting parabolic arches. Located within the Kiso Sansen Park, the structure represents the '138' height through its name, which also puns on the Japanese word 'ichinomiya'. The tower provides a 360-degree panoramic view of the Nobi Plain, the Kiso River, and the surrounding mountain ranges. Visitors access the observation floor via an internal elevator system. The base of the tower is integrated into a larger riverfront park facility that spans the banks of the Kiso River. The arches were designed to symbolize the meeting of the three great rivers in the region.
From the park grounds looking up at the base of the arches to capture the geometric symmetry against the sky.
Visit during the winter season to witness the extensive nighttime illumination displays throughout the surrounding park.
Check local weather reports before ascending, as visibility of distant mountain ranges is highly dependent on atmospheric clarity.
Combine the tower visit with a walk through the Rose Garden located at the base of the park.
Attempting to visit during inclement weather or heavy fog, as the primary draw is the panoramic visibility.
Occasionally closed for maintenance during specific weekdays; check the official website for seasonal event schedules.
