Known as the **"Rock and Snow Palace"** (岩と雪の殿堂), **Mount Tsurugi** (剱岳, Tsurugidake) stands at 2,999 meters as the crown jewel of the Northern Alps. Its jagged, pyramidal peak serves as both a premier mountaineering challenge and a site of profound spiritual power.
### 📖 Legends of the Forbidden Peak
For centuries, local folklore marked Tsurugidake as a **"mountain one must not climb"** or the **"Needle Mountain"**. It was depicted in the **Tateyama Mandalas** as a terrifying place of hell where sinners were pursued by demons among its sharp ridges. One legend even claims that **Kōbō-daishi**, the founder of Shingon Buddhism, attempted the ascent but was forced to turn back after wearing out a thousand pairs of straw sandals.
In 1907, when a team led by Yoshitaro Shibasaki made the first recorded modern ascent to place a surveying marker, they were shocked to find a rusted iron sword and a bronze staff head hidden in a cave near the summit. Scientific analysis revealed these artifacts dated back to the **Nara or early Heian periods** (roughly 1,200 years ago), proving that ancient ascetic practitioners had successfully summited the "unclimbable" peak long before modern technology arrived. This legendary feat was later immortalized in the novel and award-winning film, ***Mt. Tsurugidake: Ten no Ki***.
⛩️ Sacred Traditions and Worship
Tsurugidake is a central figure in **mountain worship** (sangaku shinkō), where the peak itself is revered as the deity **Fudō Myōō** (The Immovable Wisdom King). Practitioners of **Shugendō**—syncretic mountain ascetics known as *Yamabushi*—braved these steep ranges to disconnect from the mundane world and achieve spiritual enlightenment through grueling trials. Even today, a small shrine remains at the summit to honor the mountain’s divine status.
🥾 The Path of Trials: Hiking Routes
Modern adventurers generally choose between two primary paths to the summit:
* **Bessan Ridge Route:** The most popular route, typically accessed via the **Tateyama Kurobe Alpine Route** to Murodo. This route involves crossing the **Tsurugisawa snow valley** and staying at high-altitude huts like Kenzanso.
* **Hayatsuki Ridge Route:** Starting from **Banbajima**, this is a grueling test of endurance with a vertical elevation gain of **2,200 meters**—one of the largest in Japan. It is often described as a "strenuous" and "unrelenting" uphill climb.
The "core" (核心部) of the climb is marked by the infamous **"Crab"** sections:
* **Kani no Tatebai (The Vertical Crawl):** A near-vertical 50-meter rock wall where hikers must scale chains while hanging over a sheer drop.
* **Kani no Yokobai (The Horizontal Crawl):** A nerve-wracking traverse on the descent where hikers must sidestep across a narrow ledge; the first step is notoriously difficult to find as it is hidden from view.
🧭 Seasonal Tips and Mountain Safety
Despite being climbable without professional gear in summer, Tsurugidake is widely considered **"the most dangerous mountain"** in Japan for general hikers.
* **Season:** The safe hiking window is narrow, spanning from **early July to early October**. Outside this time, the mountain reverts to an extreme winter mountaineering environment where specialized experience is required.
* **Essential Gear:** **Helmets are mandatory** due to constant risks of落石 (falling stones).
* **Safety Advice:** Falls on the technical rock sections are almost certainly fatal. Hikers are advised to avoid the peak in rainy weather, as the rocks become treacherous and slippery.
* **Unique Geography:** The mountain is home to some of the few surviving **glaciers** in East Asia, a testament to the extreme snowfall and climate of the region.