Mount Amagi Ridgeline Traverse

The Mount Amagi Ridgeline Traverse climbs the highest peak on the Izu Peninsula from a trailhead at the Amagi Kogen Golf Course, reached by Tokai bus from Izukogen or Shuzenji Station in Izu City, Shizuoka; limited roadside parking is also available near the trailhead for drivers. The full ridgeline loop covers about 10.1km, crossing the sub-peaks of Banzaburodake and Manzaburodake before reaching the 1,405m summit of Mount Amagi, with cumulative elevation gain of roughly 640m over 4-4.5 hours. The path climbs through dense beech and Amagi-shakunage rhododendron forest on a dirt track with exposed tree roots and, after rain, mud; the ridgeline sections above the forest are more open and exposed to wind, though most of the route stays shaded under the canopy. There is no technical scrambling, but the sustained climbing and uneven footing over roots make trekking poles worthwhile. Key landmarks along the way include the summit of Banzaburodake with views toward Mount Fuji on clear days, the dense old-growth beech stands near Manzaburodake, and the final approach to the Amagi summit marker. Hikers who want a shorter outing can turn around at Banzaburodake, roughly the halfway point, for a there-and-back hike of about 2 hours. There are no mountain huts along the route and no reliable water source once past the trailhead, so all water must be carried; the forest offers natural shelter from wind and light rain but no built shelter. The historic Amagi Tunnel and old trans-peninsula road lie near the southern trailhead area for hikers extending the route toward Amagi-toge.