The “Yabakei Tunnel Hotel” project is an event where visitors can relax and dine inside of a newly completed tunnel in Yabakei, Nakatsu City, Oita Prefecture.

▼项目概览，overall view of the project © 谷知英

Oita Prefecture has the largest number of tunnels in Japan with the Kakuma Tunnel, which has been selected as the location for this event, becoming the longest in Oita Prefecture at about 3 km. The tunnel began construction a while ago, but since it was not connected to the main public road, it continued construction it was not used as a huge space.

▼周边环境，surrounding environment © 谷知英

The event was initially planned as a means for people to experience various aspects of the local Yabakei region while spending time in a tunnel which had been in construction for about 15 years.

▼隧道里的临时性休闲建筑结构，The temporary leisure structure in the tunnel © 佐野文彦