
Guide
138 Tower Park is a distinctive landmark located within the vast National Kiso Sansen Park, which stretches across the borders of Aichi, Gifu, and Mie prefectures. The park's most striking feature is the "Twin Arch 138," a stunning 138-meter tall observation tower with two elegant arches that command attention from a distance. The expansive grounds are filled with seasonal flowers, diverse playground equipment for children, and wide-open lawns, making it a beloved destination for both nature lovers and active families.
This area has developed alongside the rivers known as the Kiso Sansen. As a national park, the site is designed around the theme of coexistence with nature, providing a space where people can enjoy the benefits of a rich natural environment. The park was developed not only for river management but also to create a peaceful sanctuary where visitors can find relaxation and connection with the natural world.

The absolute highlight is the "Twin Arch 138." From the high-altitude observation deck, you can enjoy a breathtaking panoramic view of the surrounding landscape. Another must-see is the "Rose Stream," where beautiful roses bloom, and the various seasonal flower beds that change their appearance throughout the year. The seasonal blooms, such as cosmos, are particularly popular with visitors. For families, the park offers plenty of excitement with popular attractions like the "Fuwa Fuwa Dome" and the "Waku Waku Slider," ensuring fun for all generations.
Because the park's charm shifts with the seasons, your experience will vary depending on when you visit. From spring to summer, the lush greenery and wide lawns are perfect for outdoor leisure. In autumn, the landscape is beautifully colored by blooming cosmos and other seasonal flowers. Notably, during specific periods (August 13â15 and November 23âDecember 25), the park remains open until 21:00, allowing visitors to enjoy the atmosphere and light-ups at night. We recommend daytime visits for picnics and activities, and evening visits for a more tranquil, special atmosphere.

There are countless ways to enjoy the vast space. You can relax on the large lawn or participate in various events held at the event plaza. For a more active way to explore, renting a bicycle is highly recommended. The park is also equipped with large-scale playground equipment that will keep children entertained for hours. Whether you are cycling through nature or taking a leisurely stroll among seasonal flowers, the possibilities for fun are endless.
As part of the larger Kiso Sansen National Park, the area is a massive leisure zone. The nearby riverbanks offer a sense of the dynamic power of nature. Located near the borders of Aichi, Gifu, and Mie, the park is an excellent destination for a scenic drive or a day trip.
Since most activities are outdoors, we recommend wearing comfortable clothing and bringing a hat, sunglasses, and sunscreen to protect yourself from the sun. If you plan to use a bicycle, please note that wearing a helmet is a best-effort requirement. While free helmet rentals are available for rental bicycles, they are limited in number, so bringing your own is a good idea. Additionally, children under 13 are required to wear a helmet to use the rental bicycles.
ăPayment Methodsă
Cash and credit cards (Visa, MasterCard, etc.) are accepted at various facilities and services within the park. Please check specific details at each location.
ăEnglish Supportă
While some signage and facilities may feature English, staff-led English support may be limited. We recommend using a translation app if needed.
ăReservationsă
No advanced reservation is required to enter the park; you are welcome to visit freely.
ăAccessibilityă
The park is designed with accessibility in mind, featuring wheelchair-accessible entrances and restrooms.