Ranzan Valley

The Sennen no Sono Lavender Field spans approximately 6.5 hectares and boasts around 22,000 lavender plants, including more than 10 different varieties such as Grosso, Hidcote, and Avonview (16 types in 2023). In late May, visitors can enjoy the enchanting sight of red, pink, and white poppies blooming alongside early-blooming lavender. By mid-June, a portion of the field transforms into a golden sea of wheat known as "Nourin 61." Towards the end of June, visitors can witness the spectacle of wheat harvesting. The annual Ranzan Lavender Festival takes place from early to late June, offering a wonderful opportunity to experience the beauty of the lavender field. *Please note that access to the fields is restricted after the festival as they undergo harvesting.

The historic site "Sugaya Yakata Castle" (a national historic castle site) overlooking the Toki River to the south is said to be the place where Hatakeyama Shigetada built his mansion in the early Kamakura period. Inside Sugaya-kan, there is a museum dedicated to the historic remains of Ranzan Town. Furthermore, the area is also known for its Yamayuri (Mountain Lilies), which grow wild and are at their best around July every year. In addition, plum and cherry trees are also planted here. Together with Sugaya-kan, Ranzan town is home to Sugiyama Castle, and both of them were appointed as being among the "Continued 100 Fine Castles of Japan" on April 6, 2017.

Our building is located in a place that has undergone a transition from the Kamakura period’s samurai’s palace, “Sugaya-yakata”, to the Sengoku period’s castle, “Sugaya-jō”. Opened as the Saitama Prefectural Historical Data Museum in April of 1976, and later in April 1st of 2006, based on the plan for reorganization and maintenance of the prefectural museum facility, documents related to the Sugaya-yakata along with the collection, storage, and research investigation of archaeological materials related to medieval historic sites such as the medieval castles were completed. Plotting its application, the museum was rebuilt with the purpose of contributing to the development of education, learning, and culture. At this time, the name of the building was changed from Saitama Prefectural Historical Data Museum to its current name. (For more information regarding the facility, please refer to the URL below)

In 1970, the Gogaku Kenshujo (lit. village school training institution) Foundation was established on the site of the former Japan Farmers' School founded by Dr. Masahiro Yasuoka in the early Showa period. In 2012, the official name of the foundation was changed to "Gogaku Kenshujo / Yasuoka Masahiro Memorial Museum," and it has been working to promote Gogaku (the study of the countryside) and to pass on to future generations the teachings and anthropology of Dr. Yasuoka Masahiro, which are needed in this day and age, while continuing the tradition of the Japan Agricultural School.

The barbecue place opened on the river site in 2013 is the first in Tokyo to be operated by a private company. Reserve your favorite spot by the Toki River and enjoy barbecuing while being immersed in nature.