It’s absolutely beautiful whether you come for the sunset or the night view! The climb isn’t too tiring, and the view is super wide open. Great place to just relax and enjoy the breeze.

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Seitsujiyama Observatory
Be moved by the spectacular view of the Seto Ohashi Bridge stretching out to sea.
Located on a low mountain with an elevation of Approx. 120 m, this rare observatory is integrated with a wedding venue. A sweeping panorama unfolds here, with views of the dynamic Seto Ohashi Bridge stretching out to sea, the Shiwaku Islands made up of 28 large and small islands, and the townscape of Utazu. On clear days, you can even see the silhouettes of islands far in the distance.
The view from the summit has been recognized as a Lovers’ Sanctuary and is well known as a classic date spot. With a swing for couples installed there, the observatory is also full of romantic atmosphere.
The beautifully colored night view that can be enjoyed from before to after sunset is also breathtaking, and it has been selected as a “Japan Night View Heritage” site. You can take in the illuminated Seto Ohashi Bridge sparkling with lights and the glow shining across the sea, creating a deeply emotional atmosphere. If you visit, the best time is from around sunset to after sundown. The combination of the vast sky gradually darkening, the calm Seto Inland Sea reflecting the colors of the sky, and the Seto Ohashi Bridge beginning to sparkle more brightly as time passes is magnificent, letting you enjoy the beautiful scenery in a peaceful setting.
Highlights
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A rare observatory on a low mountain with an elevation of Approx. 120 m, integrated with a wedding venue.
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The view from the summit has been recognized as a Lovers’ Sanctuary and is well known as a classic date spot.
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The beautiful night view, also selected as part of the “Japan Night View Heritage,” is not to be missed.
Photos
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Be amazed by the beautiful night view around sunset, selected as part of the “Japan Night View Heritage”
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On clear days, you can see the silhouettes of islands spreading beyond the Seto Ohashi Bridge
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Also known as a Lovers’ Sanctuary, it is filled with a romantic atmosphere
Official FAQs
Frequently Asked Questions have been vetted and answered directly by each listing.
Q
Is there free Wi-Fi available in the area?
No, there is not.
Q
Are there coin lockers?
No, there are not.
Q
Are there restrooms?
There is a public restroom.
Q
Is there a smoking area?
No, there is not.
Q
Are there any sightseeing spots nearby?
Seto Ohashi Memorial Park is nearby.
Reviews
Some reviews are AI-translated.
Details
- Name in Japanese
- 聖通寺山展望台
- Postal Code
- 769-0210
- Address
- 2719-1 Utazu-cho, Ayauta-gun, Kagawa
- Phone
- For observatory hours: 0877-46-2000 (St. Angelina); for Lovers’ Sanctuary inquiries: 0877-49-8009 (Utazu Town Community Development Division)
- Closed on
- Wednesdays (open on national holidays)
- Hours
- 10:00 am–6:00 pm, Saturdays, Sundays, and national holidays 10:00 am–7:00 pm
- Admission
- Free
- Access
- Approx. 10 minutes by taxi from JR Sakaide Station
- Official website
- Official website (Japanese)