王子アルカディアリゾートホテル

The Ouji Arcadia Resort Hotel is a seven-story concrete building with two basement levels situated on Mount Ouji, overlooking the Seto Ohashi Bridge. The structure features multiple wings and courtyards designed according to plans for a luxury resort destination.

Construction started in 1992 as part of a national park development initiative, but an economic recession caused work to halt in 1993 before interior completion. The unfinished project left the building in this suspended state.

The hotel name draws from Arcadia, a classical Greek concept representing an idealized paradise. This choice reflects the optimistic spirit of 1980s Japan, when the nation pursued ambitious architectural ventures during years of economic growth.

The building is accessible by car and located roughly 20 minutes from JR Kojima Station by road. The drive from Kojima Interchange on the Setochuo Expressway takes about 25 minutes.

The project consumed roughly 4 billion yen in investment and stands as one of the largest abandoned structures in the region. These substantial costs illustrate the ambitious scope of the original development plan.