The rock spires are named 'Gun-en-po', reflecting their resemblance to a cluster of rugged, needle-like mountain peaks.
The valley is categorized as one of the 'New Three Views of Japan' (Shin-Nihon-Sankei).
The dramatic vertical cliffs were formed through centuries of erosion affecting volcanic tuff and limestone deposits.
The site is part of the Yabakei Prefectural Natural Park, established to protect the geological formations of Nakatsu.
Hitome Hakkei, which translates to 'eight views at a glance', is a prominent limestone rock formation located in the Shin-Yabakei gorge in Nakatsu, Oita. The observation deck provides a panoramic vantage point overlooking the distinct volcanic rock spires, known locally as Gun-en-po, which rise dramatically from the valley floor. The site is a primary destination for viewing the seasonal transition of Japanese maples, which blanket the jagged cliffs in vibrant autumn hues. The surrounding topography was formed by historical volcanic activity, resulting in the characteristic vertical rock faces and deep crevices visible from the deck. A path leads from the main road up to the viewing platform, providing access to multiple angles of the rock clusters. The area is integrated into the larger Yabakei area, which is historically significant for its preservation of natural mountainous terrain. The observation deck remains open to the public year-round, serving as a hub for hikers and landscape photographers exploring the northern Kyushu region.
The center of the wooden observation deck, which frames the eight prominent rock pillars against the sky.
Bring a polarizing filter for your camera to reduce glare on the foliage and enhance the definition of the rock faces.
Wear sturdy walking shoes, as the approach to the observation point involves uneven natural terrain.
Carry out all trash, as there are limited refuse facilities in this remote gorge area.
Do not attempt to climb or scale the rock spires, as the stone is unstable and it is prohibited for safety and preservation reasons.