Megijima (Onigashima) – A Mysterious Island Blending Legend and Art

Located just 20 minutes by ferry from Takamatsu Port in Kagawa Prefecture, Megijima is known as “Onigashima” (Demon Island), a place deeply connected to the famous Japanese folktale Momotaro.

However, this island is much more than just a legendary setting.

It boasts breathtaking nature, contemporary art installations from the Setouchi Triennale, and a unique island culture, all of which captivate visitors.

1.Onigashima Cave – The Legendary Home of Demons

A must-visit spot on Megijima is the Onigashima Cave. Discovered in 1914, this massive cave covers an area of about 4,000 square meters, creating an atmosphere reminiscent of the lair from the folktale.

Inside, numerous statues of demons are scattered throughout, giving visitors the feeling of stepping into the world of the legend.

The cave maintains a stable temperature throughout the year—cool in summer and warm in winter, making it a comfortable place to explore in any season.

2.An Island of Art – Setouchi Triennale

Megijima is also a venue for the Setouchi Triennale, an international contemporary art festival held in the Seto Inland Sea.

The island features unique art installations integrated into the natural scenery, offering a one-of-a-kind experience.

One of the most famous works is “Parking for Seagulls”, an installation near the shore that harmonizes beautifully with the peaceful sea, providing a calming atmosphere for visitors.

Exploring modern art while walking through a legendary island is a truly Megijima-exclusive experience.

3.Breathtaking Views from Washigamine Observatory

The highest point on Megijima is Washigamine Observatory, an incredible panoramic viewpoint.

A short hike up the mountain leads to a spacious observatory, offering breathtaking views of the Seto Inland Sea. On clear days, visitors can see as far as Shikoku, Shodoshima, and even Okayama.

The best time to visit is at sunset, when the sun sinks into the Seto Inland Sea, creating a magical, picturesque scene—a must-see for photography enthusiasts.

Megijima’s serene atmosphere makes this the perfect place to relax and take in the beauty of nature.

4.Access & Travel Information

Access:

• 20 minutes by ferry from Takamatsu Port (frequent departures, making it ideal for a day trip).

Must-See Attractions:

• Onigashima Cave – The legendary home of demons.

• Setouchi Triennale Art Tour – A blend of contemporary art and natural landscapes.

• Washigamine Observatory – A scenic spot with panoramic views of the Seto Inland Sea.

• Seasonal Nature – Especially stunning cherry blossoms in spring.

Megijima is more than just a legendary island—it is a fusion of history, art, and nature.

Whether you’re exploring the mysterious Onigashima Cave, admiring modern art, or enjoying stunning ocean views from Washigamine, this island offers an unforgettable experience.

With easy access from Takamatsu, it’s a perfect destination for a day trip.