Chugendaira Park Observation Deck

The dam constructed on the Arakawa River in Yorii Town is called the "Tamayodo Dam," and the artificial lake created by the Tamayodo Dam is known as “Lake Tamayodo (Tamayodoko).” Visitors can enjoy activities such as canoeing and rafting on this peaceful lake known for its highly transparent water and surrounded by forest. It is also a famous spot for autumn leaves in Yorii Town.

Hachigata Castle is a prime example of Sengoku-period (late 15th-16th centuries) fortresses in the Kanto region and is recognized among Japan’s top 100 castles. It is said to have been built in 1476 (Bunmei 8) by Nagao Kageharu, the chief retainer of the Yamauchi Uesugi clan, who served as the regional governors of the Kanto region. Later, Ujikuni, son of warlord Hojo Ujiyasu from Odawara, expanded and fortified it to its present scale. During Toyotomi Hideyoshi's siege of Odawara, the castle was besieged by forces led by Maeda Toshiie and Uesugi Kagekatsu. After defending for over a month, it was surrendered on the condition that the lives of the garrison would be spared, and the castle was subsequently abandoned. The main bailey and other enclosures, surrounded by earthen ramparts and deep moats, still exist today. You can learn more about Hachigata Castle's history at the Hachigata Castle History Museum, located within Hachigata Castle Park. In addition to restored models and videos, the museum offers a virtual experience program where you can explore the castle grounds recreated using CG, giving you a sense of how it appeared in its heyday. Furthermore, by downloading the app "Yotte GO! Yorii Town" (風雲YｏｔｔｅGO!謎解き寄居町), you can view CG images throughout the park and enjoy interactive games.

The Edohigan Sakura tree located in Hachigata Castle Park is a natural town monument. This cherry blossom tree is estimated to be over 150 years old, and flowers bloom beautifully on its umbrella-shaped canopy of branches every year around the end of March. You can also enjoy the evening illuminated cherry blossoms during peak season!

The Arakawa Line downstream boating in Chichibu Nagatoro allows you to ride upon the beautifully layered stone riverbed, which is designated as a national natural monument. It is a relaxing course with a couple of thrills along the way, but perfectly safe for children and seniors to enjoy as well. While listening to the boatman's entertaining speech, you can enjoy the cherry blossoms in the spring, the cool breeze in the summer, the beautiful colors of autumn, and the warmth of the kotatsu (heated table) boat in the winter. In other words, a perfect outdoor activity regardless of the season!

Presenting the theme, "From the past to the future: traveling 300 million years through Saitama's history of people's coexistence with nature," Saitama Museum of Natural History stores various resources related to nature, and displays the fossils of giant shark, “Megalodon," and mysterious sea animal, “Paleoparadoxia," discovered in Saitama Prefecture. The museum is constructed into two halls: the "Geology Exhibition," where visitors can learn about various fossils, rocks and minerals, geological strata and earth formations, and the "Biology Exhibition," featuring large dioramas of the four major forests of Saitama and the animals that live in them. Nagatoro area is a perfect example of the nature in Saitama, and here you can enjoy detailed explanations of its characteristics for a deeper understanding. You can also enjoy simulations and free audio guides. (For more information regarding the facility, please refer to the URL below.)