While iconic, climbing Mount Fuji in 2026 comes with significant "negatives," most notably extreme overcrowding on the popular Yoshida Trail, which can feel like a "conga line" to the summit. This led to the 2025 introduction of a mandatory 4,000 yen entry fee and a daily climber cap of 4,000 people to manage the flow. The terrain itself is another downside; the paths consist largely of loose volcanic ash and switchbacks, which are physically grueling and offer very little scenic variety until you reach the top. Altitude sickness is common, as many hikers attempt the 3,776-meter climb too quickly without proper acclimatization. Additionally, the "Bullet Climb" (hiking through the night without sleeping in a hut) is now discouraged or restricted due to high injury rates. Finally, the summit weather is notoriously fickle; even in mid-summer, it can be freezing and foggy, meaning you might hike for 8 hours only to have zero visibility at the peak.