On a clear summer morning at Mount Fuji’s fifth-station trailhead, the crowds gathered to ascend Japan’s most iconic peak often resemble holidaymakers headed to a coastal resort rather than mountaineers preparing for a high-altitude trek. Hikers are frequently spotted wearing canvas slip-ons, lightweight jackets, and even shorts, seemingly oblivious to the harsh environment that awaits them thousands of meters above. Towering over the landscape at 3,776 meters (12,389 feet), Mount Fuji remains a formidable natural entity where temperatures regularly plumet to sub-zero levels, even during the peak of July and August.
For Tatsuo Nanai, a veteran climber and the former secretary general of the Fuji-san Club, this recurring scene has become a source of profound anxiety. As the official climbing season for 2024 commences, Nanai expresses deep concern regarding the safety of those attempting the ascent without adequate preparation. Having witnessed decades of shifting trends on the mountain, he warns that the current influx of "casual" hikers is a recipe for disaster.
“Too many people underestimate Mount Fuji,” Nanai stated in a recent interview. “For anyone who takes it lightly, it can be very dangerous.” His concerns are backed by alarming statistics from the National Police Agency (NPA), which recorded a record high in mountain emergencies last year. In 2023, 3,623 people required rescue across Japan’s mountain ranges, resulting in 332 confirmed deaths or disappearances. A significant portion of these incidents occurred on Mount Fuji, where the sheer volume of climbers exacerbates the risks of altitude sickness, hypothermia, and physical exhaustion.
The Rising Toll of Under-Preparation
The surge in mountain-related emergencies is not an isolated phenomenon but rather the culmination of several converging factors: the post-pandemic travel boom, the influence of social media, and the accessibility of the mountain’s lower stations. Mount Fuji is divided into ten stations, with the fifth station being accessible by car or bus. This accessibility creates a psychological illusion of safety, leading many to believe that the remaining hike to the summit is a simple walk rather than a grueling vertical climb through volcanic scree and thinning air.
According to data released by the Shizuoka and Yamanashi prefectural governments, the number of climbers has returned to, and in some cases exceeded, pre-pandemic levels. The 2023 season saw approximately 221,322 people passing the eighth station, a level of foot traffic that the mountain’s fragile infrastructure struggles to support.
The primary medical concern for rescuers is Acute Mountain Sickness (AMS). Because the ascent from the fifth station (at roughly 2,300 meters) to the summit is often attempted in a single day—a practice known as "bullet climbing"—hikers do not allow their bodies enough time to acclimatize to the decreasing oxygen levels. This leads to headaches, nausea, and in severe cases, cerebral or pulmonary edema, which can be fatal if the individual does not descend immediately.
A Chronology of Crisis and Regulation
The history of Mount Fuji’s management is a timeline of balancing its status as a sacred site and a UNESCO World Heritage icon with its reality as a global tourist magnet.
- 2013: Mount Fuji is officially granted UNESCO World Heritage status. While this brought prestige, it also triggered a massive spike in international tourism, placing immediate strain on the mountain’s trails.
- 2020–2022: The COVID-19 pandemic led to temporary trail closures and restricted access. This period provided a brief environmental reprieve but resulted in a "revenge travel" surge once restrictions were lifted.
- 2023: A record-breaking year for accidents. The NPA reported that nearly 30% of those rescued on Mount Fuji were foreign nationals, many of whom lacked proper gear or were attempting "bullet climbs."
- July 2024: In response to the previous year’s chaos, Yamanashi Prefecture implemented unprecedented measures. For the first time, a daily cap of 4,000 climbers was introduced for the Yoshida Trail, the most popular route. Additionally, a mandatory 2,000 yen (US$13) entry fee was enacted to fund safety measures and environmental conservation.
The Phenomenon of "Bullet Climbing"
The practice of "bullet climbing" involves hikers starting their ascent late at night, hiking through the dark to reach the summit in time for the sunrise (known as Goraiko), and then immediately descending. While culturally significant, this method is the leading cause of injuries and calls for help.
Rescuers report that bullet climbers are often found huddled together on the trails, suffering from hypothermia as they wait for the sun to rise. Without a reservation at one of the mountain’s limited mountain huts, these climbers have no place to rest or warm up. The lack of sleep combined with physical exertion significantly increases the risk of falls on the steep, uneven terrain.
"We see people trying to climb in sandals or carrying nothing but a small bottle of water," says a spokesperson for the Yamanashi Prefectural Police’s mountain rescue unit. "When the weather turns—which it does in minutes on Fuji—these people have no defense against the elements."

Official Responses and New Safety Mandates
The introduction of the 4,000-person cap and the entry fee represents a pivot in how Japan manages its natural landmarks. Kotaro Nagasaki, the Governor of Yamanashi Prefecture, has been a vocal advocate for these changes, arguing that "over-tourism" has compromised both the safety of visitors and the sanctity of the mountain.
The new regulations include the installation of a gate at the fifth station that closes between 4:00 PM and 3:00 AM. This is specifically designed to prevent bullet climbing by ensuring that only those with hut reservations can begin their climb during the evening hours. The funds generated from the new entry fee are being redirected toward hiring more "mountain rangers" who patrol the trails to provide safety advice and monitor the health of climbers.
Furthermore, Shizuoka Prefecture, which manages three other major trails up the mountain, has introduced an online pre-registration system. While not yet mandatory or fee-based like the Yoshida Trail, it encourages climbers to log their itineraries and confirm they have secured lodging.
Environmental and Structural Implications
Beyond the immediate danger to human life, the overcrowding of Mount Fuji has severe environmental consequences. The "human pressure" on the mountain manifests in several ways:
- Erosion: The constant footfall of thousands of climbers daily accelerates the erosion of the volcanic soil, damaging the natural pathways and requiring constant, expensive maintenance.
- Waste Management: Despite "carry-in, carry-out" policies, litter remains a persistent issue. Furthermore, the mountain huts’ toilet facilities, which use high-tech flushing or composting systems, are often pushed beyond their capacity during peak weekends.
- Local Infrastructure: The roads leading to the fifth stations become choked with traffic, delaying emergency vehicles. Local hospitals in the foothills of the mountain report being overwhelmed during the summer months by hikers seeking treatment for avoidable injuries and altitude issues.
Analysis: The Intersection of Tourism and Responsibility
The crisis on Mount Fuji serves as a microcosm for a broader challenge facing Japan: the management of "high-risk tourism." As the Japanese yen remains weak, the country has seen a record influx of international visitors. Many of these tourists are drawn to "bucket list" experiences like climbing Mount Fuji but may lack the mountaineering culture or experience prevalent among local Japanese hikers.
Analysts suggest that the current measures, while a step in the right direction, may only be the beginning of a more restrictive management style. There is ongoing debate about whether the entry fee should be significantly higher—comparable to the fees charged for trekking in the Himalayas or visiting restricted sites in Bhutan—to truly deter those who are unprepared.
Moreover, the role of social media cannot be overlooked. "Instagrammable" moments of the sunrise from the summit often omit the grueling ten-hour struggle and the freezing winds required to get there. This curated reality contributes to the "underestimation" that Tatsuo Nanai fears.
Conclusion: A Call for Cultural Shift
As the 2024 season progresses, all eyes are on the effectiveness of the new regulations. While the daily caps and fees may reduce the raw number of climbers, the fundamental issue remains a matter of education and respect for the natural world.
Mount Fuji is not merely a tourist attraction; it is a complex, high-altitude environment that demands preparation, proper equipment, and physical fitness. The veteran climbers of the Fuji-san Club and the rescue teams of the National Police Agency continue to emphasize that the mountain does not care about one’s travel itinerary or footwear choices.
For the safety of the thousands who will attempt the climb before the trails close in mid-September, the message from officials is clear: Mount Fuji is a peak to be respected, not just a backdrop for a photograph. Without a significant shift in how the public approaches this alpine challenge, the record-breaking rescue statistics of 2023 may soon become the new, tragic norm.
