Ayakawa Spring Group Miyazaki Prefecture | Clear Streams of Japan’s Top 100 Waters and Golden Sweetfish Nurtured by Evergreen Broadleaf Forest
The Ayakawa Spring Group, located in Aya Town, Higashi-Morokata District, Miyazaki Prefecture, is a representative spring group of Kyushu that has been selected as one of Japan’s Top 100 Waters. Clear water stored in the deep forests of evergreen broadleaf forests springs forth, forming the Ayakita River and Ayaminami River. This article provides detailed information about the charm of the Ayakawa Spring Group, how to access it, nearby tourist spots, and the “golden sweetfish” nurtured by this fine water.
What is the Ayakawa Spring Group?
The Ayakawa Spring Group is a collective name for multiple spring sites centered in the Minamimata district of Aya Town, Higashi-Morokata District, Miyazaki Prefecture. The clear streams flowing from the evergreen broadleaf forest designated within Kyushu Chuo Sanchi Quasi-National Park maintain stable water temperatures throughout the year. Due to the excellent water quality, it was selected as one of Japan’s Top 100 Waters by the Environmental Agency (now the Ministry of the Environment) in 1985.
Clear Water Nurtured by Evergreen Broadleaf Forest
Aya Town is covered with the world’s largest-scale evergreen broadleaf forest, spanning approximately 2,500 hectares. This primeval forest has also been selected as one of Japan’s “Water Source Forests,” and is composed of deep forests of evergreen broadleaf trees such as Sudajii, Tabu trees, and oak varieties. The rich soil of the evergreen broadleaf forest acts as a natural filter, slowly filtering rainwater through while permeating it underground, thereby producing clear spring water.
Groundwater replenished by the forest’s water retention capacity springs forth at multiple points, forming two clear streams: the Ayakita River and the Ayaminami River. These rivers merge as the Ayakawa and eventually flow into the Oyodo River.
Reasons for Selection as a Top 100 Water
The Ayakawa Spring Group was selected as a Top 100 Water because of its excellent water quality, abundant water volume, and deep connection to the region’s life and culture. The spring water is soft water that is easy to drink and has been traditionally used by local residents as domestic water. Additionally, it is used in the dyeing process of the local specialty, genuine Oshima tsumugi silk fabric, playing an important role in producing beautiful colors.
Main Spring Spots of the Ayakawa Spring Group
The Ayakawa Spring Group is not a single spring site but is composed of multiple spring sites scattered throughout the ravines of the evergreen broadleaf forest. Here are the main spring spots.
Spring Group in Minamimata District
The Minamimata district of Aya Town is particularly concentrated with abundant spring water sites. Clear water springs from rock crevices in deep ravines, forming small waterfalls as it flows into the river—a scene that truly evokes the mystery of nature. The spring water in this district maintains a stable temperature of around 15 degrees Celsius throughout the year, feeling cold in summer and warm in winter.
Places Where Water Can Be Collected
Water collection is possible at several points in the Ayakawa Spring Group. However, if you plan to use the water for drinking, it is recommended to confirm the water quality conditions beforehand with the Aya Town Industry and Tourism Division (0985-77-3464). The selection as one of the Environment Ministry’s Top 100 Waters does not necessarily guarantee suitability for drinking, so caution is necessary, especially when drinking untreated water.
Many local residents regularly use this spring water, and you can see people arriving with plastic bottles and polycanks to collect water.
Spectacular Views from Aya’s Teruhaku Suspension Bridge
If you visit the Ayakawa Spring Group, be sure to stop by the “Aya’s Teruhaku Suspension Bridge.” This suspension bridge is known as the world’s largest pedestrian-only suspension bridge, boasting an impressive scale with a total length of 250 meters and a height of 142 meters.
Views from the Bridge
From atop the suspension bridge, you can overlook the sea of evergreen broadleaf forest stretching below and the clear Ayakawa stream flowing through the forest. The forest scenery changes with the seasons—fresh greenery in spring, deep green in summer, autumn foliage in fall, and winter silence—captivating all who visit. Particularly in the early morning, mist rising from the forest creates a fantastical landscape.
Beyond the suspension bridge, a walking trail is maintained, allowing you to stroll through the evergreen broadleaf forest. You can enjoy forest bathing while experiencing the nature of the spring source area firsthand.
Operating Hours and Access
The operating hours of Aya’s Teruhaku Suspension Bridge are normally 8:30-18:00 (April-September) and 8:30-17:00 (October-March). Admission is 350 yen for adults, 250 yen for junior and senior high school students, and 150 yen for elementary school students. Visiting with ample time allows you to enjoy the spectacular views leisurely.
Golden Sweetfish and the Clear Streams of Ayakawa
The clear streams nurtured by the Ayakawa Spring Group produce sweetfish known as the “golden ayu” of Aya. During the Edo period, this sweetfish was so prized that it was presented to the Shimazu lords of the Satsuma Domain, and a position called “ayu magistrate” was even established to manage the fish.
Characteristics of the Golden Sweetfish
The reason Ayakawa’s sweetfish are called “golden” is their beautiful golden body color. Sweetfish raised in the clear water flowing from the evergreen broadleaf forest have golden-shining bellies and are characterized by a strong unique fragrance, also called the “fish of fragrance.” The excellent water quality and abundant moss species nurture this special sweetfish.
Sweetfish Fishing and Sweetfish Cuisine
Ayakawa’s sweetfish fishing season runs from June through October. Anglers from across the country visit to enjoy friend fishing in the clear stream. A fishing license is required to fish, so be sure to check beforehand.
Restaurants within Aya Town serve fresh sweetfish dishes, and you can enjoy golden sweetfish prepared in various ways including salt-grilled, candied, and sweetfish rice.
Nature and Culture of Aya Town
Aya Town, home to the Ayakawa Spring Group, is registered as a UNESCO Biosphere Reserve where nature and humanity coexist. It is internationally recognized as a town pursuing sustainable regional development while preserving a rich natural environment.
Genuine Oshima Tsumugi and Spring Water
Aya Town is also known as a center of production for genuine Oshima tsumugi silk fabric. In the dyeing process of tsumugi, the clear soft water of the Ayakawa Spring Group is used, with this water quality producing beautiful colors and a soft texture. Spring water is not merely a gift of nature but an important resource supporting traditional crafts.
Facilities within Aya Town allow visitors to observe the Oshima tsumugi manufacturing process and learn about the relationship between spring water and traditional culture.
Town of Organic Farming
Aya Town is said to be the birthplace of organic farming in Japan, with agriculture thriving without reliance on chemical fertilizers or pesticides. The clear water of the Ayakawa Spring Group is also used to cultivate organic vegetables, producing safe and delicious agricultural products. Direct sales shops in town offer fresh organic vegetables and processed goods for purchase.
Access to Ayakawa Spring Group
Here are directions for accessing the Ayakawa Spring Group and Aya’s Teruhaku Suspension Bridge.
Access by Car
It is approximately 30-40 minutes by car from the center of Miyazaki City. From Miyazaki IC on the Miyazaki Expressway, head toward Aya Town via National Route 10 and Prefectural Road 26. A free parking lot is available at Aya’s Teruhaku Suspension Bridge with a capacity of approximately 400 vehicles.
When using car navigation, searching for “Aya’s Teruhaku Suspension Bridge” or “Aya Town Minamimata” is convenient.
Access by Public Transportation
When using a bus from Miyazaki Station, board a Miyazaki Kōtsū bus heading to “Aya,” arriving at Aya Bus Stop in approximately 50 minutes. From there, it is about 10 minutes to Aya’s Teruhaku Suspension Bridge by taxi or rental car. However, as bus service is limited, it is recommended to check the timetable in advance.
During tourist season, sightseeing bus tours from Miyazaki City may also be available.
Nearby Tourist Attractions
Here are nearby tourist attractions to enjoy when visiting the Ayakawa Spring Group.
Ayakawa Villa
“Ayakawa Villa,” nestled beside the Ayakawa, is a lodging facility where you can enjoy hot springs and dining. You can soak in hot springs while overlooking the clear Ayakawa stream, and the cuisine using local ingredients is well regarded. Day-trip bathing is also available, making it ideal for relaxing after sightseeing.
Aya Castle
Aya Castle, a restoration of a medieval mountain castle, is a symbolic landmark of Aya Town. From the main tower, you can view both the townscape of Aya and the evergreen broadleaf forest, with a museum also housed within the castle. It is a spot where you can enjoy both history and nature.
Teruha no Mori no Yado
A lodging facility within the evergreen broadleaf forest offering a wealth of nature experience programs. Various activities are available including forest therapy, birdwatching, and night hikes, allowing you to fully experience Aya Town’s rich nature.
Sakaizumi no Mori
A facility of Unkai Sake Brewery, which produces the local sake “Aya,” where you can enjoy sake brewery tours and tastings. Shochu and liqueurs brewed with the clear water of the Ayakawa Spring Group are popular souvenirs.
Points to Note When Visiting Ayakawa Spring Group
Here are important points for safely enjoying the Ayakawa Spring Group.
Consideration for Nature Conservation
The Ayakawa Spring Group and surrounding evergreen broadleaf forest constitute a precious natural environment. Always take your trash with you, refrain from plant collection and feeding animals. Avoid entering areas outside designated walking trails for nature conservation reasons.
Water Quality and Drinking Water
Although it has been selected as a Top 100 Water, drinking it is at your own risk. Especially when drinking untreated water, it is recommended to confirm water quality conditions with Aya Town’s Industry and Tourism Division beforehand. It is safer to boil the water before drinking.
Seasonal Clothing
Aya Town is located in a mountainous area, so temperatures are lower than in urban areas. Particularly in winter, cold-weather clothing is necessary. When hiking through forests, wear comfortable walking shoes and long sleeves and trousers. Bringing insect repellent spray is also recommended.
Weather-Related Effects
After heavy rainfall, the spring water’s quality may temporarily change, or walking trails may become impassable. Check the weather forecast before your visit, and consider rescheduling if bad weather is expected.
Ayakawa Spring Group Through the Seasons
The Ayakawa Spring Group presents different faces throughout the four seasons.
Spring (March-May)
The season when the fresh greenery of the evergreen broadleaf forest is most beautiful. The vibrant green of young leaves combined with the clarity of spring water creates a scene full of vitality. Mild temperatures make it an ideal time for hiking.
Summer (June-August)
The deep green forest and cold spring water make you forget the heat. It is also the beginning of the sweetfish fishing season, when you can see people enjoying fishing in the clear stream. The forest is cooler than the city, making it a popular summer retreat.
Autumn (September-November)
Although the evergreen broadleaf forest is composed mainly of evergreens, some deciduous trees change color, creating beautiful contrasts of green and red. The air is crisp, and the views from Aya’s Teruhaku Suspension Bridge are particularly stunning during this season.
Winter (December-February)
A season with fewer visitors where you can enjoy nature in quiet solitude. The spring water temperature is higher than the ambient temperature, and you can witness the fantastical sight of steam rising. It is also an ideal time for winter bird observation.
Water Quality Data of Ayakawa Spring Group
The water quality of the Ayakawa Spring Group is regularly monitored, with its clarity scientifically proven.
Water Quality Characteristics
The water of the Ayakawa Spring Group is soft water with appropriately contained mineral content. The pH value falls in the weakly acidic to neutral range, making it easy to drink. It is also characterized by high transparency, allowing clear visibility of underwater conditions.
Natural filtration occurs as water passes through evergreen broadleaf forest soil, removing impurities. The stable water temperature throughout the year is evidence that it is sufficiently replenished as groundwater over an extended period.
Environmental Conservation Efforts
Aya Town undertakes various initiatives to preserve the water quality of the Ayakawa Spring Group. Comprehensive environmental conservation activities are being conducted, including evergreen broadleaf forest protection, promotion of organic farming, and domestic wastewater management.
Additionally, through activities as a UNESCO Biosphere Reserve, sustainable regional development aimed at the coexistence of nature and humanity is being advanced.
Other Fine Water Spots in Miyazaki Prefecture
Miyazaki Prefecture has excellent spring water sites in addition to the Ayakawa Spring Group.
De no Yama Spring (Kobayashi City)
One of Japan’s Top 100 Waters, where subflow water from the Kirishima mountain range springs forth into a beautiful pond. Known for its abundant water volume and exceptionally high transparency, allowing you to clearly see fish swimming in the pond.
Comparison with Aya’s Spring Group
De no Yama Spring is volcanic spring water, whereas the Ayakawa Spring Group is spring water replenished by the evergreen broadleaf forest. The different geology and vegetation create distinctive fine waters with individual characters.
Conclusion
The Ayakawa Spring Group is a natural treasure of which Aya Town, Miyazaki Prefecture is proud. The clear spring water nurtured in the deep forests of the evergreen broadleaf forest nurtures golden sweetfish, supports traditional crafts, and has become an essential presence in the lives of local people.
The charm of Aya Town centered on the Ayakawa Spring Group is diverse, ranging from the spectacular views of Aya’s Teruhaku Suspension Bridge to sweetfish fishing in clear streams, organic vegetables, and local sake. The appearance of sustainable regional development where nature and humanity are in harmony surely imparts deep emotion to visitors.
The accessibility—approximately 30 minutes by car from Miyazaki City—is also one of its attractions. When traveling through Kyushu, be sure to visit the Ayakawa Spring Group and experience the blessings of fine water and the rich natural environment created by the evergreen broadleaf forest. The sound of clear water, the deep green forest, and the warm hospitality of the region will surely create lasting memories. The Ayakawa Spring Group is a wonderful spot worthy of selection as one of Japan’s Top 100 Waters, where nature and culture are in harmony. It is a place you will want to visit time and again, enjoying its different faces with each season.
