Climbing Mt Fuji: Japan’s Most Iconic Challenge
Mt Fuji (Fuji-san, 3,776m) is Japan’s highest mountain and one of the world’s most recognized natural landmarks. Climbing it is a rite of passage for many Japanese and an extraordinary experience for visitors — the summit dawn (goraiko) is one of the most memorable things you can do in Japan. But Fuji is a serious mountain hike, not a stroll: altitude sickness, sudden weather changes, and extreme crowds on peak summer weekends all demand proper preparation. There is a Japanese saying: “A wise man climbs Fuji once; a fool climbs it twice.”
Climbing Season
The official climbing season runs from early July to mid-September. Outside this window, mountain huts are closed, safety conditions are unpredictable, and ascending is strongly discouraged. The official start date varies slightly by trail each year — check the Fujisan official website for the current season’s dates. Snow can persist at the summit until late June and return in October.
- Peak period: Late July through mid-August. Maximum crowds — up to 4,000 climbers per day on the Yoshida Trail. Summit queues at the crater can take over an hour
- Best timing: Early July (right after season opening) or September. Fewer crowds, similar conditions
- Weekday vs. weekend: Saturday nights are most crowded as climbers aim for Sunday sunrise at the summit. Weekday climbs are significantly quieter
The Four Trails
- Yoshida Trail (5th Station: 2,305m, Yamanashi side): Most popular — 70% of all climbers use this route. Well-maintained, many huts, good for first-timers. Most accessible from Tokyo (Kawaguchiko via highway bus). Ascent 5–7 hrs; descent 3–4 hrs
- Subashiri Trail (5th Station: 1,970m, Shizuoka side): Less crowded, beautiful forest section in the lower portion. Merges with Yoshida Trail at the 8th Station. Ascent 6–8 hrs
- Gotemba Trail (5th Station: 1,440m, Shizuoka side): Least crowded, longest route (ascent 7–10 hrs). Great sandy descent (osunabashiri). For experienced hikers seeking a quieter experience
- Fujinomiya Trail (5th Station: 2,380m, Shizuoka side): Second most popular; shorter than Yoshida. The trail closest to the summit from the 5th station. Good condition; accessible from Shinkansen at Shin-Fuji
Climbing Strategies
Option 1: Single-Day Climb
Ascend during the day, summit, descend the same day. Start before 6am; plan for 10–12 hours total. Miss the sunrise crowd but still experience the summit. Better for those who want to avoid altitude sickness from a midnight start.
Option 2: Summit for Sunrise (Overnight)
The classic approach: depart afternoon, reach a high-altitude hut by evening, sleep a few hours, summit for goraiko (dawn). Stay at a mountain hut between 7th and 8th stations (reserve well in advance — huts sell out weeks ahead for peak weekends). Altitude acclimatisation at the hut reduces altitude sickness risk compared to climbing straight through.
Option 3: “Bullet Climbing” (Nighttime Ascent)
Taking the last bus to the 5th station and climbing straight through the night to reach the summit for sunrise. Common but the most exhausting and highest-risk approach for altitude sickness. Not recommended for beginners.
Essential Gear
- Layers: Summit temperature can be 0°C or below even in August. Thermal base layer, fleece mid-layer, waterproof windproof jacket and trousers. Gloves and hat essential
- Footwear: Proper hiking boots with ankle support. Trail running shoes are acceptable; flip-flops or sneakers are not suitable and risk injury on volcanic scree
- Headlamp: Essential for night sections. Bring spare batteries
- Trekking poles: Rentable at the 5th station. Help significantly on descent. Protective rubber tips required on upper sections (volcanic rock)
- Rain gear: Mountain weather changes rapidly. Waterproof jacket at minimum; full waterproof trousers recommended
- Water and food: Carry at least 1.5L of water. Food available at huts (expensive). At least 2,000 kcal of trail snacks recommended for overnight climbs
- Sun protection: Above the treeline, UV exposure is extreme. High-SPF sunscreen, sunglasses, hat
- Cash: Hut toilet fees (¥200–¥300), food purchases, stamping your walking stick (¥500/stamp) — all cash only
Altitude Sickness
Acute mountain sickness (AMS) is common on Fuji due to the rapid ascent from low altitude to 3,776m. Symptoms: headache, nausea, dizziness, fatigue, difficulty concentrating. Prevention: ascend slowly, stop to acclimatise at each station, drink water regularly. Treatment: descend. If symptoms are severe (confusion, inability to walk straight), descend immediately and seek medical help at mountain rescue posts. Diamox (acetazolamide) prescription medication can help prevent AMS — consult a doctor before your climb if concerned.
Getting to the 5th Station
- Yoshida 5th Station from Tokyo: Highway bus from Shinjuku Expressway Bus Terminal or Kawaguchiko Station. Direct buses run during climbing season. Journey 2.5 hrs. During peak season, private vehicles are banned above the 2nd station on the Yoshida route — use the bus
- Fujinomiya 5th Station from Shin-Fuji: Bus from Shin-Fuji Shinkansen station. Journey 2 hrs. Requires transfer
- Gotemba 5th Station: Bus from Gotemba Station (JR Gotemba Line from Shin-Fuji or Numazu)
Rules and Regulations (2024 onward)
In response to overtourism and safety incidents, Yamanashi Prefecture introduced significant restrictions on the Yoshida Trail from 2024:
- Gate closure at night: A barrier gate closes at the Yoshida 5th station from 4pm–3am to prevent overnight “bullet climbing” and overloading of summit areas during peak hours
- ¥2,000 conservation fee: Required on the Yoshida Trail; included in some bus ticket packages
- Daily climber cap: Visitor numbers on the Yoshida Trail are capped at 4,000 per day; the gate closes when the cap is reached
- Other trails: Shizuoka Prefecture trails (Gotemba, Subashiri, Fujinomiya) have their own rules — check each trail’s official guidelines before climbing
Rules may be updated each season. Check the official Fujisan.jp website for current regulations before your trip.
Practical Tips
- Book huts early: Mountain huts during peak season fill up weeks in advance. Book directly with huts by email (many now have English booking systems)
- Descend before noon: Afternoon cloud cover is common; descending in clear conditions is safer and more enjoyable
- Leave no trace: All rubbish must be carried down. Fuji’s trails are clean because climbers take responsibility
- Physical fitness: No technical climbing skill required, but reasonable cardiovascular fitness makes the experience more enjoyable. Aim to be able to walk 4–6 hours before attempting Fuji