Kirosan Observatory Park

亀老山展望公園

Kirosan Observatory Park is at the top of a 301 m mountain at the southern tip of Oshima Island, on the Shimanami Kaido route. It is part of Setonaikai National Park. The observation deck was designed by architect Kengo Kuma. From here you can see the Kurushima-Kaikyo Bridge, the world's first triple suspension bridge, and the islands of the Seto Inland Sea.

Open in Google Maps ↗ Directions ↗

Visitor information

Opening hours: Open 24 hours.
Closed: Open every day of the year.
Admission: Admission is free.
Getting there: By car, about 10 minutes from Imabari IC to Oshima-minami IC, then about 10 minutes to the park.

Hours and fees can change. Please check the official website before you go.

Good to know

From September 24, 2026 to January 10, 2027 (planned), parking lot 1 is closed for construction and the restrooms are unavailable; a temporary toilet is set up in lot 3.

Tips for Muslim visitors

Observation decks can have long waits at sunset and on weekends. A timed ticket helps you keep to your prayer times.
Plan your visit around prayer times. Below are today's prayer times for Ehime and the verified places to pray nearby.
Food stalls and shops near popular sights usually do not have halal certification. Check the ingredients, or choose from the verified places on this site.