Guide
Nanki-Katsuura Onsen is a premier hot spring destination located in the southern part of Wakayama Prefecture. Historically, the area consisted of different springs known as Iso-no-yu and Akashima Onsen, but it is now widely recognized as a single, unified hot spring district under the name Nanki-Katsuura Onsen. The area saw significant development through advanced drilling technology starting in the Taisho era, leading to a wealth of diverse hot spring sources. The region's development was further bolstered by the designation of Yoshino-Kumano National Park in 1950 and the electrification of the Kisei Main Line in 1978. Today, it serves as a vital cultural and tourism hub due to its proximity to the UNESCO World Heritage site, 'Sacred Sites and Pilgrimage Routes in the Kii Mountain Range.'
The history of this region is ancient, with much earlier origins for its hot springs. During the Taisho era, records show that the head of the Tokugawa clan, Yorimichi Tokugawa, visited the area. He was so captivated by the experience of bathing in the cave that he remarked he had 'forgotten to return home,' which gave rise to the name of the famous 'Bokido' (the cave bath). In the 1960s, the area also became a popular destination for honeymooners. In recent years, as global interest in World Heritage sites has grown, Nanki-Katsuura Onsen has solidified its role as a destination that combines historical depth with natural relaxation.
There are numerous spots around Nanki-Katsuura Onsen where you can feel the presence of nature and history. A standout attraction is 'Bokido,' a unique hot spring facility set within a natural cave. Beyond the hot springs themselves, the dramatic coastline and natural environment are major draws. Additionally, the area is famous for its culinary culture, particularly its tuna cutting shows and the abundance of fresh seafood, offering a perfect pairing of hot spring relaxation and gourmet dining.
You can enjoy the hot springs throughout the year, though the surrounding natural scenery and sea conditions change with the seasons. In the summer, the area is lively with maritime leisure activities, while in the winter, the focus shifts to seasonal delicacies like premium tuna. For the best experience, we recommend enjoying a relaxing soak in the hot springs after a day of sightseeing or after a hearty dinner at your accommodation to fully embrace the evening atmosphere of the hot spring town.
Beyond soaking in the hot springs, the area offers various activities that utilize the surrounding natural environment. It serves as an ideal starting point for pilgrims and hikers exploring the World Heritage 'Kumano Kodo' trails. Due to its proximity to the coast, many visitors enjoy a relaxing stay while gazing out at the ocean views. Your itinerary can easily combine hot spring relaxation with hiking through historical sites and nature trails.
Nanki-Katsuura Onsen is the gateway to many significant sites related to the 'Sacred Sites and Pilgrimage Routes in the Kii Mountain Range.' Key destinations nearby include the Kumano Kodo pilgrimage routes, Daimon-zaka, Nachi Falls, Kumano Nachai Taisha Shrine, and Kogane-watari-ji Temple, as well as the scenic Kinosaki-jima and Smoke-signal Peninsula. These areas are characterized by breathtaking landscapes and historic architecture, making the hot spring area an ideal base for exploring these cultural treasures.
When using the hot spring facilities, it is recommended to have a yukata (casual robe) or towel ready. If you plan to walk the Kumano Kodo or explore natural areas, please bring comfortable walking shoes and wear clothing suitable for movement. Regarding payment, please note that while many major facilities accept credit cards, some smaller establishments may be cash only. While English support may be available at major tourist information centers and large hotels, we recommend checking with your specific accommodation or facility in advance for detailed information.