Senbiki no Sakura: A Mountain of Cherry Blossoms Once Called the "Yoshino of Shikoku"
High in the central mountains of Ehime Prefecture, where the dense cedar forests of the Takanawa Peninsula give way to a wide pass overlooking the Seto Inland Sea, lies a place where wild mountain cherry trees have bloomed for centuries. Senbiki no Sakura (千疋のサクラ), located in Tamagawa-cho, Imabari City, is a nationally designated Place of Scenic Beauty (名勝) celebrated since ancient times as a sacred and romantic stretch of the Naraharasan mountain range. Long known to the people of Shikoku as their own "Yoshino" — a reference to Nara's famously sublime cherry blossom mountain — this site weaves together natural beauty, medieval legend, and mountain religious tradition in a setting few foreign visitors have ever discovered.
A Place of Scenic Beauty Designated in 1941
Senbiki no Sakura was officially designated as a national Place of Scenic Beauty by the Japanese government on December 13, 1941 (Showa 16), with management entrusted to Imabari City the following February. The designation recognizes not only the cherry trees themselves but the broader landscape — a wide upland pass on the Naraharasan range where wild mountain cherries (yamazakura) once bloomed in such profusion that they "rivaled the prospect of Yoshino, forming a scene of extraordinary scale," to paraphrase the original cultural property record.
The name "Senbiki" — literally "one thousand horses" — comes from a poignant medieval legend. During the turbulent Northern and Southern Courts period (Nanboku-cho, 14th century), Southern Court warriors are said to have gathered here, and the cherry trees of the pass were so numerous that even one thousand cavalry horses could be tethered to them. Local tradition further holds that Emperor Chokei of the Southern Court took refuge somewhere on the slopes of this very mountain. The pass thereby became woven into the historical memory of an era of imperial schism, samurai politics, and the wandering loyalty of those who fought for the southern line.
The Natural Setting: Mount Naraharasan and the "Yoshino of Shikoku"
The cherry trees stand near Senbiki Pass on Mount Naraharasan (楢原山), a 1,041-meter peak that rises from the heart of the Takanawa highlands. To the east, on a clear day, one can see the Imabari plain and the glittering Seto Inland Sea; to the west and south extend the green folds of central Ehime's mountains. Naraharasan has been counted among the "100 Famous Mountains of Shikoku" and forms the heart of the Oku-Dogo Tamagawa Prefectural Natural Park.
The cherries here are predominantly yamazakura (Cerasus jamasakura), Japan's native wild mountain cherry — the same species that gave Yoshino its fame. Unlike the cloned Somei-yoshino cultivar that dominates urban Japan today, yamazakura unfold their leaves and blossoms simultaneously, producing a softer, more textured tapestry of pinkish-white flowers and bronze-tinged young foliage. Each tree blooms slightly differently, so the season unfolds gradually rather than all at once.
A Landscape That Has Shifted with Time
Visitors should approach with an honest expectation: the cherry trees today are far fewer than in the era when the site was designated. Many of the great old trees have aged and gradually died, and the dense "cloud of blossoms" described in the original 1941 records is no longer what greets modern visitors. Yet for those willing to walk into the quiet mountain, what remains is a contemplative, atmospheric place — old trees among cedars and cypresses, a pass open to the wind, and the quiet feeling of a landscape that once moved generations of poets.
Cultural and Religious Layers of the Mountain
Senbiki Pass cannot be separated from Naraharasan Shrine (奈良原神社), which stands near the summit of the mountain. Long known as "Naraharasan Gongen," the shrine has been venerated since ancient times as a guardian deity of cattle and horses, drawing devotion from farming villages across the Imabari plain. The mountain also served as a center of Shugendo, Japan's syncretic mountain-ascetic tradition, and the slopes preserve the remains of Renge-ji, an old temple connected to that practice.
In 1934, during cleaning work for a rain-prayer ceremony at the shrine, workers discovered an extraordinary buried treasure: a Heian-period bronze reliquary pagoda containing sutra scrolls. This sutra mound (kyozuka) and its contents — the "Excavated Articles from the Iyo Province Naraharasan Sutra Mound" — were designated a National Treasure of Japan and are now preserved at the Imabari City Tamagawa Modern Art Museum at the foot of the mountain. To stand at Senbiki Pass is therefore to stand within a living religious landscape that has been important to local people for over a thousand years.
A stone tanka monument near the pass preserves a verse by the modern poet Yoshii Isamu, who was moved by the wind-blown petals of these mountain cherries and the imperial associations of the place.
Highlights for the Visitor
Visiting Senbiki no Sakura is an experience for travelers who appreciate quiet places, atmospheric history, and genuine mountain landscapes rather than crowded photo-spots. The key highlights worth seeking out include the windswept atmosphere of Senbiki Pass itself, with sweeping views toward the Seto Inland Sea on clear days; the surviving yamazakura trees scattered along the pass and ridge, with their characteristic simultaneous bloom of flower and leaf in early to mid-April; the Yoshii Isamu tanka monument standing modestly beside the trail; the broader pilgrimage atmosphere of Naraharasan Shrine higher up the mountain, set among ancient cedars; and the deep silence of the surrounding old-growth woodland, part of the Oku-Dogo Tamagawa Prefectural Natural Park.
How to Reach Senbiki no Sakura
The site lies in the mountainous interior of Imabari City and is best reached by car. From Imabari IC on the Shimanami Kaido expressway, drivers head south along Route 317 toward Tamagawa, then turn onto Prefectural Route 154 to reach the Nibukawa Onsen area in roughly 15 minutes. From Nibukawa Onsen, a narrow mountain road continues upward toward Naraharasan; the cherry-tree area is reached on foot from a parking pull-off, along a forest path. Visitors have noted that the road is narrow, parking is limited, and the final approach is on foot — so sturdy shoes and caution are essential.
For visitors without a car, the most practical approach is by taxi from JR Imabari Station, which lies about 20 minutes from Nibukawa Onsen. From there, local advice should be sought before continuing into the higher mountain sections, as public transport does not extend that far.
The cherry trees bloom in spring, typically between late March and mid-April depending on the year's weather; mountain elevations mean the bloom here often runs slightly later than in the lowlands of Imabari.
What to See in the Surrounding Area
One of the great pleasures of visiting Senbiki no Sakura is combining the trip with the rich cluster of attractions nearby. Nibukawa Onsen, counted among the "Three Hot Springs of Iyo" together with Dogo and Hontani, has welcomed travelers since the Edo period and is famed as a "beauty water" hot spring. The adjacent Nibukawa Gorge is part of the Oku-Dogo Tamagawa Prefectural Natural Park and earned second place in the "100 Natural Sites of Shikoku to Preserve" — a forested ravine of clear streams and hanging bridges. The Imabari City Tamagawa Modern Art Museum, at the foot of the mountain, holds the National Treasure bronze reliquary pagoda and sutra-mound artifacts excavated from Naraharasan, making it a natural cultural counterpart to a visit at the pass. Devoted hikers can also continue all the way up to Naraharasan Shrine itself, set in a grove of ancient cedars including the prefecturally designated "Komochi-sugi" (mother-and-child cedar).
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Q&A
- What kind of cherry trees grow at Senbiki no Sakura?
- The trees are predominantly yamazakura (Cerasus jamasakura), Japan's native wild mountain cherry. Unlike the more familiar Somei-yoshino, yamazakura open their leaves and flowers at the same time, producing a softer mosaic of bronze-pink hues. This is the same species that made the Yoshino mountains in Nara famous, which is why the area was historically called the "Yoshino of Shikoku."
- Why is the place called "Senbiki" (one thousand)?
- According to local tradition, the name dates from the Northern and Southern Courts period of the 14th century. The cherry trees of the pass were so numerous that warriors of the Southern Court could supposedly tether one thousand cavalry horses among them. The legend is one of several connecting this mountain to Emperor Chokei and the Southern Court.
- Are there as many cherry trees today as there were in the past?
- No. Many of the great old trees that gave the site its fame have aged and died, so the modern landscape is much more subdued than the descriptions in the 1941 designation. Visitors should come for atmosphere, history, and the wider mountain setting rather than expecting Yoshino-scale crowds of blossoms.
- When is the best time to visit?
- Yamazakura usually bloom from late March into mid-April, with the higher mountain elevations running slightly later than the lowland city. Spring also offers comfortable hiking conditions in the Nibukawa Gorge and on Naraharasan, while autumn brings vivid foliage to the same area.
- Can I combine the visit with other sights?
- Yes — and this is highly recommended. Nibukawa Onsen, the Nibukawa Gorge, the Imabari City Tamagawa Modern Art Museum (home of the National Treasure bronze pagoda from Naraharasan), and Naraharasan Shrine itself all lie within a short drive. Together they make for a memorable day rooted in nature, history, and Shikoku's mountain spirituality.
Basic Information
| Name | Senbiki no Sakura (千疋のサクラ) |
|---|---|
| Cultural Property Category | National Place of Scenic Beauty (名勝) |
| Designation Date | December 13, 1941 (Showa 16) |
| Managing Body | Imabari City (designated February 14, 1942) |
| Location | Tamagawa-cho, Imabari City, Ehime Prefecture |
| Setting | Senbiki Pass on the Naraharasan range, within Oku-Dogo Tamagawa Prefectural Natural Park |
| Approximate Elevation | Around 600 m at the pass; Mount Naraharasan summit 1,041 m |
| Tree Species | Yamazakura (wild mountain cherry, Cerasus jamasakura) |
| Best Viewing Season | Late March to mid-April (timing varies year to year) |
| Access | Approx. 15 min by car from Imabari IC (Shimanami Kaido) to Nibukawa Onsen, then a mountain road; final approach on foot |
References
- 千疋のサクラ - 文化遺産オンライン (Cultural Heritage Online)
- https://bunka.nii.ac.jp/heritages/detail/211280
- 千疋のサクラ - 国指定文化財等データベース (Agency for Cultural Affairs)
- https://kunishitei.bunka.go.jp/heritage/detail/401/2546
- 楢原山 - Wikipedia
- https://ja.wikipedia.org/wiki/%E6%A5%A2%E5%8E%9F%E5%B1%B1
- 楢原山へのみち - 四国のみち
- https://shikoku-nature-trail.com/archives/3852
- 玉川近代美術館 - 今治市
- https://www.city.imabari.ehime.jp/museum/tamagawa/
- 鈍川温泉 - 今治地方観光協会
- https://www.oideya.gr.jp/nibukawaonsen/
- 奈良原神社 - 愛媛県神社庁
- http://ehime-jinjacho.jp/jinja/?p=905
Last verified: 2026.04.27