Chichu Art Museum: Tadao Ando's Underground Gallery on Naoshima

What Makes Chichu Art Museum Unique

Chichu Art Museum (地中美術館) is an entirely underground museum on Naoshima island in Kagawa Prefecture, designed by Pritzker Prize-winning architect Tadao Ando (安藤忠雄). The name "chichu" literally means "underground" — and that is exactly where the entire building sits, carved into a hillside overlooking the Seto Inland Sea.

What sets this museum apart from any other art space in Japan is its complete reliance on natural light. There is no artificial lighting inside. The artworks change in appearance depending on the time of day, weather, and season, making every visit a different experience. Opened in 2004, the museum houses just three permanent installations by Claude Monet, James Turrell, and Walter De Maria.

Chichu Art Museum is one of several art destinations across Kagawa and part of the broader art island phenomenon that has made Naoshima internationally famous. Combined with nearby Teshima Art Museum, these two museums represent the finest examples of architecture-as-art in the Japanese island chain.

The Three Permanent Installations

The museum holds only three artists' works, each in a dedicated space designed specifically for them. This focused approach means every installation has been calibrated to interact with Ando's architecture and the shifting natural light.

Claude Monet: Water Lilies in Natural Light

The Monet room displays large-scale Water Lilies (睡蓮) paintings in a white marble space lit entirely from above. The room has no windows or electric lights — sunlight filters through the ceiling, changing how the paintings look throughout the day.

Visitors remove their shoes before entering. The effect is contemplative and immersive, very different from seeing the same series behind glass at other museums. Midday visits on clear days produce the most vibrant colors, while overcast skies create softer, more muted tones.

James Turrell: Open Sky and Light Spaces

James Turrell's installations at Chichu include Open Sky (オープン・スカイ), a room with a rectangular opening in the ceiling that frames the sky as a living artwork. As clouds pass and light shifts, the edges of the opening seem to change color and depth.

Turrell's other light spaces in the museum use carefully shaped rooms and apertures to manipulate how you perceive light and color. These works are best experienced by sitting quietly and letting your eyes adjust — rush through and you will miss most of what makes them remarkable.

Walter De Maria: Time/Timeless/No Time

The deepest chamber houses Walter De Maria's Time/Timeless/No Time (タイム/タイムレス/ノータイム), a massive marble and granite sculpture. Sunlight enters from above, and the sculpture's appearance shifts dramatically as shadows move across the geometric patterns.

This space is the most architecturally dramatic of the three. The interplay between Ando's severe concrete geometry and De Maria's sculpture creates a contrast that rewards slow observation.

Tadao Ando's Underground Architecture

The building itself is widely considered a fourth artwork. Ando designed Chichu Art Museum to sit entirely below ground level so that it would not disrupt Naoshima's natural landscape. From the hilltop, only geometric cutouts in the earth reveal the structure below.

Ando's signature exposed concrete walls create a series of corridors, courtyards, and light wells. As you move between installations, the interplay of shadow and sunlight on raw concrete becomes part of the experience. The transition spaces are intentionally designed as decompression zones between the three very different artworks.

Before entering the museum, you pass through the Chichu Garden — a small but carefully tended garden. It serves as a visual bridge between the natural landscape and the art below. For more on Ando's work at Benesse House museum and hotel, which combines accommodation with art in a similar architectural philosophy, see our dedicated guide.

Tickets, Hours, and Reservations

Online reservation with timed entry is required. According to Benesse Art Site Naoshima, tickets are priced as follows:

	Online	Walk-up
Weekdays	¥2,500 (~$17)	¥2,800 (~$19)
Weekends & holidays	¥2,700 (~$18)	¥3,000 (~$20)
Children (15 & under)	Free	Free

Walk-up tickets are available at higher prices, but slots sell out quickly during peak season. Book through the official Benesse Art Site website as early as possible, especially for weekend visits.

Hours: 10:00–17:00, last entry at 16:00.

Closed: Mondays (if Monday is a national holiday, closed the following Tuesday instead).

Allow 1.5 to 3 hours for your visit. The museum is small in terms of installations, but the spaces are designed for slow, contemplative viewing. Rushing through in under an hour means missing the point entirely.

Getting to Chichu Art Museum

Chichu Art Museum sits on the south side of Naoshima island, about 2 km from Miyanoura Port.

From Miyanoura Port

Most visitors arrive at Miyanoura Port by ferry from Takamatsu (approximately 60 minutes) or Uno Port in Okayama Prefecture. From the ferry terminal, you have several options:

• Town bus: Take the bus to Tsutsuji-so bus stop (about 10 minutes, ¥100), then transfer to a free shuttle bus for the final 10 minutes to the museum
• Bicycle: Rent a bike at the port and cycle approximately 2 km (10 minutes). Note that the terrain is hilly in places
• Walking: From Tsutsuji-so bus stop, the walk takes about 30 minutes along a scenic coastal path

From Honmura Area

If you are visiting the Art House Project in Honmura first, a shuttle bus connects Honmura to the museum area. This is convenient for combining both sides of Naoshima in a single day.

Tips for the Best Visit

• Choose a clear day. Since the museum uses only natural light (自然光), your experience on a sunny day versus an overcast day will be dramatically different. The Monet room in particular benefits from strong sunlight
• Time your visit for midday. The strongest natural light enters between 11:00 and 14:00, which produces the most vivid experience in the Monet room. Late afternoon creates interesting shadow effects in the De Maria space
• No photography inside. Cameras and phones must stay away in all installation spaces. You can photograph the Chichu Garden and exterior courtyards
• Remove shoes when asked. Some spaces, including the Monet room, require shoe removal. Wear socks you are comfortable walking in on marble floors
• Combine with other Naoshima sites. Plan to visit the Benesse Art Site complex and outdoor installations and the Art House Project village walk on the same day. A full day on Naoshima allows you to cover the major sites without rushing
• Check Monday closures. Many Naoshima museums share the same Monday closure schedule. Plan your island visit for Tuesday through Sunday

Frequently Asked Questions

Do I need to book tickets in advance for Chichu Art Museum?

Yes. Online reservation with timed entry is required. Weekday online tickets are ¥2,500 (~$17), weekends ¥2,700 (~$18). Walk-up tickets are available at higher prices (¥2,800 and ¥3,000 respectively), but slots sell out quickly during busy periods. Book through the Benesse Art Site website.

How long should I spend at Chichu Art Museum?

Allow 1.5 to 3 hours. The three main installations are the core experience, but the architecture, corridors, and Chichu Garden also deserve unhurried attention. The museum is designed for slow, contemplative viewing rather than quick walkthroughs.

Can I take photos inside Chichu Art Museum?

No photography is permitted inside the museum or any of the installation spaces. You can photograph the Chichu Garden and exterior courtyard areas. Consider this an opportunity to experience the art without a screen.

What is the best time of day to visit for natural light?

Midday between 11:00 and 14:00 offers the strongest natural light, which is particularly effective in the Monet Water Lilies room. Late afternoon creates different shadow effects in the De Maria installation. Clear, sunny days are significantly better than overcast ones, since the entire museum relies on natural light.

How much does it cost to visit Chichu Art Museum?

Weekday online tickets cost ¥2,500 (~$17) and walk-up tickets ¥2,800 (~$19). Weekend and holiday online tickets are ¥2,700 (~$18) and walk-up ¥3,000 (~$20). Children aged 15 and under enter free. Book online in advance to save money and guarantee your entry slot.