Hiking

Hiking here spans an hour on a maintained path to a waterfall and a multi-day traverse above three thousand metres, and the two share a category but nothing else. The infrastructure is unusually good — signed junctions, staffed huts, timetabled buses to trailheads — which makes it easy to underestimate the serious end of it, because the approach to a difficult mountain looks much like the approach to an easy one.

Season is the governing fact. The high routes in the Alps, in Tohoku and in Hokkaido are realistically walkable from roughly June to October and carry snow or ice outside that; going in May because the weather in the valley is fine is the classic error. Mount Fuji's marked trails are open only for a short summer window and officially closed the rest of the year regardless of conditions. Lower and coastal trails work all year but get muddy, and the sun on an unshaded ridge in August is a genuine hazard rather than a discomfort.

Costs are low and lumpy: the trail is free, the bus to it is not, the ropeway that saves you a thousand metres of ascent is a couple of thousand yen return, and a night in a mountain hut with two meals is in the same range as a business hotel. Huts want reservations, particularly at weekends in the short summer, and many are cash.

Practical realities that catch visitors: water sources are not reliably marked, signal drops immediately past the trailhead, bear bells are normal equipment in much of the north, and the last bus down is early.

Choose by descent, not ascent. Almost everyone can get up; the accidents, the missed buses and the miserable afternoons happen on the way down, and the honest question is how you will feel about two hours of steep steps on tired legs. A first walk here should be one where the way down is a lift, a ropeway, a road or a genuinely gentle path.

Then choose one with an escape. A loop that passes its own start, a route with a mid-point bus stop, or an out-and-back you can turn round on at any moment are all far better first choices than a point-to-point that commits you to finishing. This matters more in Japan than in many countries because the transport at the far end is often a single bus a day.

Third, prefer a trail with a hut or a shrine on it. Both mean a maintained path, other people, and somewhere to stop; mountain worship built most of the older trails and the infrastructure still follows those lines.

Finally, be realistic about the season rather than the date. If you are here between November and May, take the coastal and low-level walks and enjoy them, rather than attempting something alpine because the forecast is clear — snow on a north-facing slope at fifteen hundred metres does not care what the forecast in the town says. Save the high traverses for a trip that is actually built around them, with the right footwear, a hut booked, and the last bus written down.

Planning around sunset instead of the last bus. The bus goes long before the light does. Work backwards from it, and know what the walk-out or the taxi option is if you miss it.

Reading "3 hours" as three hours. Japanese trail signs generally quote moving time for a fit walker with no stops, and the sign at the bottom does not know how much of it is stairs. Add half again for a first outing.

Climbing a volcano without checking the alert level. Access to active peaks changes with volcanic activity and is posted rather than negotiable. The route that was open last season may have a closed summit this one.

Assuming a summer mountain is warm. A clear ridge at altitude is cold, and the same walk in cloud is very cold and wet. The temperature at the trailhead tells you almost nothing about the temperature at the top.

Skipping the trailhead notice board. Bear activity, washed-out sections, closed bridges and hut status are all posted there, in Japanese, and photographing it for later translation takes ten seconds.

Turning up at a hut without a booking. Space is finite and, in the short high season, gone. Some will not turn you away in bad weather but that is emergency practice, not a plan.

Wearing new boots or trainers. Wet volcanic rock, chained scrambles and long stone staircases are the three surfaces this category is made of, and trainers handle none of them well.