Mt. Oyama via Yabitsu Pass — A Quiet Ridge Hike Away from the Crowds
Take a bus from Hadano Station to Yabitsu Pass (761m) and follow the Itatsumi Ridge to the summit of Mt. Oyama (1,252m). A peaceful alternative to the popular cable car route, with sweeping views of Mt. Fuji and Sagami Bay.
Nearest Station
🚉 Hadano Station
Odakyu Line (about 70 min express from Shinjuku)
Duration
⏱ About 4 hours (round trip)
Distance
📏 About 4.6km
Elevation
⛰ 1252m
Best Season
Spring, Summer, Autumn
Trail Overview
Mt. Oyama (1,252m) is one of the most popular mountains near Tokyo, well known for the Afuri Shrine cable car route from Isehara Station. However, there is another way up that far fewer hikers take — the Yabitsu Pass route from Hadano Station.
Starting from Yabitsu Pass (761m), a major trailhead on the eastern edge of the Tanzawa Mountains, the Itatsumi Ridge takes you along a scenic ridgeline to the summit. Compared to the crowded main trail on the Isehara side, this route offers peaceful forest walking and open views of Sagami Bay and the Hadano cityscape along the way.
Yabitsu Pass is also the starting point for the famous Omote Ridge traverse toward Mt. Tonodake, making it a key hub for Tanzawa hiking. If you want a quieter, more authentic mountain experience on Oyama, this is the route to choose.
Recommended Routes
Route 1: Itatsumi Ridge (Shortest & Recommended)
The most direct path from Yabitsu Pass to the summit. You walk along a ridgeline with good views, and the gradient is relatively gentle.
Yabitsu Pass → Itatsumi Ridge → Junction at 25-chome → Mt. Oyama Summit
Wooden steps and chain handrails are installed on steeper sections, making it accessible for moderately experienced hikers. At 25-chome, the trail merges with the main trail from Afuri Shrine before the final push to the summit through two torii gates.
Route 2: Ura-sando (Rear Approach)
A quieter, wooded alternative that follows the old rear pilgrimage path. Walk back along the road from Yabitsu Pass toward Minoge to find the trailhead.
Yabitsu Pass → Ura-sando Trailhead → Mt. Oyama Summit
This route runs through dense forest with fewer views but a more secluded atmosphere.
Route 3: One-Way Traverse (Recommended for Full Experience)
Climb via Itatsumi Ridge and descend the main trail to Afuri Shrine Lower Station, then ride the cable car down and take a bus to Isehara Station. This way, you experience both sides of Mt. Oyama in a single day.
Yabitsu Pass → Itatsumi Ridge → Summit → Omote-sando → Afuri Shrine → Cable Car → Isehara Station
Course Times
Itatsumi Ridge Round Trip
| Section | Distance | Time |
|---|---|---|
| Hadano Station → (bus) → Yabitsu Pass | — | About 50 min |
| Yabitsu Pass → Itatsumi Ridge trailhead | About 0.3km | 5 min |
| Trailhead → 25-chome junction | About 1.7km | 65 min |
| 25-chome → Mt. Oyama Summit | About 0.3km | 15 min |
| Ascent total | About 2.3km | About 1 hr 25 min |
| Summit → Yabitsu Pass (descent) | About 2.3km | About 60 min |
| Round trip total (excl. breaks) | About 4.6km | About 2 hr 25 min |
One-Way Traverse (Yabitsu Pass → Isehara Station)
| Section | Time |
|---|---|
| Yabitsu Pass → Mt. Oyama Summit | About 1 hr 25 min |
| Summit → Afuri Shrine Lower Station (Omote-sando) | About 60 min |
| Lower Station → Base Station (cable car) | 6 min |
| Base Station → (bus) → Isehara Station | About 25 min |
| Total | About 3 hours (incl. transport) |
Tip: If you plan the one-way traverse, check the cable car’s last departure time — it varies by season.
Highlights
Itatsumi Ridge Views
The ridge walk from Yabitsu Pass is one of this route’s greatest rewards. As you climb, you get increasingly open views eastward toward Hadano city and Sagami Bay, and westward across the Tanzawa mountain range. On clear days, the scenery is outstanding.
Summit Panorama — Fuji & the Pacific
The 1,252m summit of Mt. Oyama delivers a near-360-degree panorama: Mt. Fuji to the west, Sagami Bay and Enoshima Island to the south, and the vast Kanto Plain to the east. Visibility is best in autumn and winter when the air is crisp — you may spot Tokyo Skytree or the Boso Peninsula on a clear day.
Beech Forest
The upper slopes of Oyama are home to beautiful beech (buna) forests that are especially stunning during fresh green season (May-June) and autumn foliage (November). Walking quietly through these ancient trees is a highlight unique to the Yabitsu side.
Summit Tea House
A small tea house operates at the summit, serving warm drinks and light snacks. Relaxing on the benches with a hot drink while soaking in the views is one of the simple pleasures of this hike.
Convenience Stores & Shops
| Name | Location | Distance from Station | Notes |
|---|---|---|---|
| 7-Eleven Hadano Station North Exit | Hadano Station North Exit | 1 min walk | 24 hours |
| Daily Yamazaki Hadano Ekimae | Hadano Station North Exit | 1 min walk | Good for breakfast & trail snacks |
| FamilyMart Hadano Honcho | North of Hadano Station | 3 min walk | — |
| Yabitsu Pass Shop | Yabitsu Pass | At the bus stop | Drinks & light snacks |
Important: There are no shops on the trail between Yabitsu Pass and the summit. Stock up on food and water at Hadano Station or the Yabitsu Pass shop before you start hiking.
Toilets
- 🚻 Hadano Station: Inside the station (barrier-free)
- 🚻 Yabitsu Pass: Public toilet near the bus stop
- 🚻 Mt. Oyama Summit: Summit toilet (may be closed in winter)
Note: There are no toilets on the trail between Yabitsu Pass and the summit. Use the facilities at Yabitsu Pass before starting.
Access
Train + Bus
- Shinjuku Station → Odakyu Line express → Hadano Station (about 70 min, around 700 yen)
- Hadano Station North Exit, Platform 4 → Kanachu Bus route Hata-21 to Yabitsu Pass → Yabitsu Pass (about 50 min, around 480 yen)
Bus Schedule Notes
- Weekends & holidays: Roughly one bus per hour
- Weekdays: Extremely limited — only one morning departure (8:25 AM) as of the July 2025 timetable revision
- Winter (Dec–Mar): Bus service between Minoge and Yabitsu Pass may be suspended due to snow
- Always check the return bus schedule before you start hiking
- Latest timetable: Kanachu Bus official website
By Car
There is a free parking lot at Yabitsu Pass (about 30 spaces). However, it fills up early on weekends and holidays, so public transport is recommended.
Safety Notes
- ⚠️ Limited bus service: Especially on weekdays — always check the timetable beforehand
- ⚠️ Mountain leeches: From May to October, leeches are active after rain. Bring leech repellent spray
- ⚠️ Winter ice: December to February, the trail may be icy or snow-covered. Light crampons are essential
- ⚠️ No water sources: There is no water between Yabitsu Pass and the summit. Carry enough water
- ⚠️ Cable car timing: If descending via the main trail to Isehara, check the cable car’s last departure
Related Trails
- 📍 Mt. Oyama (Main Trail) — The classic cable car route with Afuri Shrine and famous Oyama tofu
- 📍 Mt. Tanzawa — Yabitsu Pass is also the starting point for the Omote Ridge traverse toward Mt. Tonodake and Mt. Tanzawa