The bridge is suspended over a chasm formed by basaltic lava flows originating from the extinct Mount Omuro volcano.
The surrounding 'Jogasaki' (Castle Cape) name derives from the fortress-like appearance of the dark, vertical cliff faces.
The bridge is constructed from steel and is designed to sway slightly under pedestrian movement.
The area features rare coastal vegetation that thrives on the nutrient-poor volcanic soil found near the cliffs.
It is part of a larger geological network designated as a UNESCO Global Geopark site.
The Kadowaki Lighthouse, located adjacent to the bridge, features an observation deck that provides views of the Izu Seven Islands on clear days.
Kadowaki Suspension Bridge is a 48-meter-long steel footbridge situated within the Izu Jogasaki Coast of Izu Peninsula. The bridge spans a narrow, sheer-walled inlet carved into volcanic rock formations created by Mount Omuro eruptions approximately 4,000 years ago. Visitors walk 23 meters above the churning sea and jagged black lava rocks. The structure serves as a critical junction for the Jogasaki Coast Nature Trail, which stretches several kilometers along the coastline. The surrounding terrain is characterized by columnar jointing, a geological feature where cooled lava fractured into vertical hexagonal pillars. The bridge connects the Kadowaki Lighthouse area to the primary forest hiking path. Safety railings are installed, but the exposed nature of the bridge can result in significant wind resistance during inclement weather. The site remains a prominent geological landmark within the Izu Peninsula UNESCO Global Geopark.
From the center of the bridge looking down into the narrow inlet to capture the verticality of the columnar basalt cliffs.
Wear sturdy, closed-toe walking shoes as the surrounding trails are uneven and rocky.
Bring a windbreaker, as the open coastal inlet experiences strong, direct sea breezes regardless of the season.
Check local weather alerts; the bridge may be accessed, but the narrow trails become slick and hazardous during heavy rain.
Do not attempt to walk onto the rock ledges outside the designated trail markers for photography, as the volcanic rock is brittle and steep.
