Shiramizu Falls: A Hidden Cascade at the Source of the Ono River

Nestled deep within the Hinatame Gorge on the border of Oita and Kumamoto Prefectures, Shiramizu Falls (白水の滝, Shiramizu no Taki) is a breathtaking natural wonder that has captivated poets, painters, and feudal lords for centuries. Registered as a National Monument (Scenic Site) in 2007, this majestic cascade stands at the headwaters of the Ono River, one of the major waterways of northeastern Kyushu. The falls are celebrated as one of the "Oita Prefecture 100 Scenic Views" and remain one of the region's most enchanting yet uncrowded destinations.

Historical Background and Cultural Significance

Shiramizu Falls has been renowned since the Edo period, when it was widely known as "Hinatame no Taki" (陽目瀑). The earliest major written reference appears in the Bungo Kokushi (豊後国志), a regional chronicle compiled in 1803 (Kyōwa 3). Over the centuries, the falls attracted the attention of successive lords of the Oka Domain (岡藩), who built a teahouse near the falls so they could rest and appreciate the scenery during their inspections of the domain's outlying areas.

The celebrated literati painter Tanomura Chikuden (田能村竹田), one of the greatest masters of Nanga (Southern School) painting in Japan, also visited this site and was deeply moved by its beauty. Numerous other poets and scholars composed waka poetry and Chinese verse praising the falls, and paintings from the Meiji and Taishō eras preserve the splendor of the entire landscape as it appeared in those times.

Why Was Shiramizu Falls Designated a National Monument?

Shiramizu Falls was registered as a National Monument (Scenic Site) on July 26, 2007, under the category of Registered Monuments of Japan. Several factors contributed to this designation:

The falls are formed by welded tuff from the Aso pyroclastic flow deposits, creating a distinctive geological formation rarely seen elsewhere. Water seeps through cracks in the rock face and emerges as countless delicate streams, forming what geologists call "subsurface waterfalls" (潜流瀑布) — a type where water flows underground before bursting through cliff faces rather than simply cascading over a ledge. This geological rarity, combined with centuries of cultural appreciation documented in literature and art, made the falls a natural candidate for national recognition.

Additionally, the falls served as the vital water source for two major irrigation channels — the Shiramizu Waterway (completed in 1902) and the Ogi-Kashiwabaru Waterway (completed in 1926) — that transformed the Ogi Plateau into productive farmland, demonstrating the deep connection between natural beauty and the livelihood of the local community.

Highlights and What to See

The Main Falls

The main cascade, located at the innermost point of the gorge, plunges approximately 38 meters down sheer rock walls. According to the official cultural heritage record, the upper tier measures about 20 meters high and 19 meters wide, while the lower tier — located about 85 meters downstream — stands approximately 17 meters high and 20 meters wide. The water appears strikingly white against the dark volcanic rock, a sight that gives the falls their name.

The "Mother Falls" (Haha-daki)

Before reaching the main cascade, visitors encounter the elegant "Mother Falls" — two graceful streams of pure white water that resemble a curtain of silk draped over the cliff. The crystalline purity of the water here is remarkable, with absolutely no cloudiness or sediment.

The Trail and Surrounding Springs

A well-maintained walking trail leads from the Meisui Chaya parking area to the falls, taking approximately 15 to 20 minutes. Along the way, visitors will notice water emerging from cracks in the rock face at numerous points — small rivulets and springs that hint at the underground aquifer feeding the main cascade. Two arched stone bridges (taiko-bashi) mark the midway point, and from there a steeper stairway ascends to the base of the main falls.

Seasonal Beauty

The falls offer a different experience in each season. In spring, fresh green foliage frames the white cascades. Summer brings cool, refreshing mists that offer welcome relief from the heat — the gorge is said to feel noticeably cooler than the surrounding area. Autumn, particularly from early to late October, brings spectacular foliage that creates a vivid contrast with the white water. The annual Ono River Source Festival is held near the falls, celebrating the natural heritage of the area.

The Origin of the Name "Shiramizu"

Two compelling theories explain the name "Shiramizu" (白水, literally "white water"). The first holds that the countless thin streams of water flowing down the rock face appear snow-white, naturally inspiring the name. The second, more poetic explanation suggests that there were originally 99 individual streams — one short of a hundred. In Japanese, the character for "hundred" (百) minus one horizontal stroke becomes the character for "white" (白), thus "Hundred Water Falls" became "White Water Falls." Both theories reflect the extraordinary visual character of this cascade.

Surrounding Attractions

The area around Shiramizu Falls offers many worthwhile destinations for visitors:

  • Hinatame Gorge and Camping Park — The gorge downstream of the falls features a recreational area with cottages, bungalows, and campsites set amidst lush forest. River play in summer and autumn foliage viewing are popular activities.
  • Meisui Chaya (Spring Water Teahouse) — Located at the trailhead parking area, this rustic restaurant serves traditional dengaku cuisine — local ingredients grilled over charcoal and dipped in two types of miso. A beloved local specialty.
  • Hakusui Dam (White Water Dam) — Located downstream on the Ono River in Taketa City, this 1938 irrigation dam is designated an Important Cultural Property for its elegant curved spillway design, considered one of the most beautiful dams in Japan.
  • Oka Castle Ruins — The nationally designated historic ruins in central Taketa that inspired composer Taki Rentarō's famous song "Kōjō no Tsuki" (The Moon Over the Ruined Castle). Stone walls and panoramic views make this an essential visit.
  • Nagayu Onsen — A hot spring resort area famous for its carbonated waters, about 30 minutes from the falls. The Ramune Onsen (Soda Spring Bath) is a unique experience.
  • Kuju Highlands and Kuju Flower Park — The expansive highland plateau offers sweeping mountain scenery, hiking, and one of Japan's largest flower parks.
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Q&A

QHow do I get to Shiramizu Falls?
AFrom JR Bungo-Ogi Station, the falls are about 10–15 minutes by car. From JR Bungo-Taketa Station, it is approximately 30 minutes by car. There is a free parking area at the Meisui Chaya (Spring Water Teahouse), from which a walking trail leads to the falls in about 15–20 minutes. Public transportation is limited, so a rental car is recommended.
QIs there an admission fee to visit the falls?
ANo, there is no admission fee. Shiramizu Falls and the walking trail are free to visit year-round. Parking at the Meisui Chaya area is also free.
QWhat is the best season to visit Shiramizu Falls?
AEach season has its own appeal. Summer (June–August) is ideal for enjoying the cool mist and lush greenery. Autumn (mid-October to early November) offers stunning foliage surrounding the white cascades. Spring brings fresh green leaves, and even winter has a quiet, meditative beauty. Water volume tends to be highest in spring and early summer.
QIs the trail to the falls difficult?
AThe trail is moderately easy, with some steep stairs near the upper section. It is manageable for elderly visitors and children, though sturdy footwear is recommended. The path is well maintained with stone steps and bridges. Allow about 15–20 minutes each way.
QWhat type of waterfall is Shiramizu Falls?
AShiramizu Falls is classified as a "subsurface waterfall" (潜流瀑布, senryū bakufu). Unlike typical waterfalls where a river flows over a cliff edge, here water travels underground through volcanic rock and then emerges from cracks and fissures in the cliff face, creating dozens of delicate white streams. This geological formation is created by the welded tuff deposits from ancient Aso volcanic eruptions.

Basic Information

Name Shiramizu Falls (白水の滝, Shiramizu no Taki)
Designation Registered Monument (Scenic Site), registered July 26, 2007
Location Hinatame, Ogi-machi, Taketa City, Oita Prefecture / Takamori Town, Aso District, Kumamoto Prefecture
Height Approximately 38 m (upper tier: approx. 20 m; lower tier: approx. 17 m)
Geology Welded tuff from Aso pyroclastic flow deposits; subsurface waterfall (senryū bakufu)
River System Source of the Ono River (大野川); confluence of the Ōtani and Makido tributaries
Access Approximately 10–15 min by car from JR Bungo-Ogi Station; 30 min by car from JR Bungo-Taketa Station
Parking Available at Meisui Chaya (free); approx. 15–20 min walk to the falls
Admission Free
Contact Hinatame no Sato Meisui Chaya: 0974-68-2210

References

白水の滝 — 文化遺産オンライン(Cultural Heritage Online)
https://bunka.nii.ac.jp/heritages/detail/164731
国指定文化財等データベース(Agency for Cultural Affairs)
https://kunishitei.bunka.go.jp/bsys/maindetails/411/00003557
白水の滝 — 大分県観光情報公式サイト
https://www.visit-oita.jp/spots/detail/4386
白水の滝(しらみず)— 竹田市観光ツーリズム協会
https://taketa.guide/spots/detail/b8955588-ea2e-47ab-9157-7e0201cf1e3b
白水の滝 (大分県) — Wikipedia
https://ja.wikipedia.org/wiki/%E7%99%BD%E6%B0%B4%E3%81%AE%E6%BB%9D_(%E5%A4%A7%E5%88%86%E7%9C%8C)

Last verified: 2026.04.05