Côte d'Azur Observatory

Research institute · La Trinité

Côte d'Azur Observatory

Research institute · La Trinité

2

96 Bd de l'Observatoire, 06300 Nice, France

Photos

Côte d'Azur Observatory by null
Côte d'Azur Observatory by Photo courtesy of OCA
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null
Côte d'Azur Observatory by null

Highlights

Perched on Mont Gros, the Nice Observatory blends stunning views with rich history, featuring architectural wonders by Garnier and Eiffel for an unforgettable visit.  

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4.0
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96 Bd de l'Observatoire, 06300 Nice, France Get directions

oca.eu

Information

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96 Bd de l'Observatoire, 06300 Nice, France Get directions

+33 4 92 00 30 11
oca.eu
ObsCoteAzur
𝕏
@obsdenice

Features

wheelchair accessible parking lot
wheelchair accessible entrance

Last updated

Jul 28, 2025

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@afar

"Côte d'Azur Observatory On a pine-covered summit overlooking the sprawling city of Nice, Mont Gros, a 19th-century observatory, is a local icon. Built by Charles Garnier (famous for his Paris Opéra design) in collaboration with Gustave Eiffel (yes, that Eiffel), the monument has inspired film location scouts and is popular with local couples who come to take in the stunning view of the city together. The observatory is still an active science laboratory focusing on astronomy, astrophysics, and geoscience. The original 18-meter-long lens is responsible for finding 2,000 previously unrecorded double stars. There are two-hour guided tours on Wednesdays and Saturdays year-round, with a more frequent schedule during school holidays."

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@kebedinger
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nick webster

Google
Brilliant views, amazing place. The tour was entirely in French but we were offered a discount by the tour guide - he explained that he would translate as much as possible but we wouldn't get the full experience. Fantastic.

C.A. M

Google
We joined a tour in 2018 which was in French with a very kind guide. The site was absolutely stunning, the combination of history, physics and actually walking in and around the buildings that house the telescopes makes the experience more vivid then you can imagine beforehand.

Pavel

Google
Observatoire de la Côte d'Azur: A Scientific and Architectural Marvel History and Architecture The Observatoire de la Côte d'Azur (OCA) is a leading French center for astronomical and geodetic research. It was established in 1988 through the merger of the Nice Observatory and the Center for Research in Geodynamics and Astrometry (CERGA). The Nice Observatory was founded in 1878 on Mont Gros at the initiative of banker Raphaël Bischoffsheim. The building was designed by architect Charles Garnier, while the rotating dome, weighing 100 tons, was engineered by Gustave Eiffel. In 1888, the observatory installed what was then the largest refracting telescope in the world, with a 76 cm lens and a focal length of 18 meters. On Plateau de Calern, located on the border between the French Riviera and Provence, the observatory features a complex of futuristic domed structures designed by architect Antti Lovag. These structures, resembling a lunar landscape, house telescopes and laser technology used for scientific research and astronomical observations. Scientific Research The observatory is involved in various cutting-edge research projects, including: Detection of gravitational waves in collaboration with the VIRGO project. Planetary science, stellar physics, and cosmology research. Development of astronomical instruments and interferometric observations with the VLTI (Very Large Telescope Interferometer). Earth science studies, including geodynamics and space geodesy. Visiting the Observatory The Observatoire de la Côte d'Azur is open to visitors. Guided tours are available by reservation, offering insights into historical buildings, telescopes, and modern research facilities. Special tours are also organized for children aged 6 and above, providing interactive educational experiences. A Unique Blend of Science and Heritage The Observatoire de la Côte d'Azur represents a harmonious fusion of historical legacy, advanced scientific research, and striking architecture. As a significant center for science and culture, it continues to inspire visitors and researchers alike with its rich heritage and pioneering discoveries.

Mike K

Google
A go-to landmark for anyone who’s into physics and celestial bodies. Some nice explorations await!

E M

Google
Amazing tour with a very resourceful and entertaining guide (Robin). It is definitely worth booking when being in the Nice area

Emanuele Scola

Google
Visits are organized by the people of the observatory ( consult "OCA " for the days and schedule ) You will see the "grand dome" designed by Garnier and Eiffel In a beautiful pine forest and the most beautiful view on the whole city but also mountains . The observatory is at 380m over the city . there are buses to go there .

Rafael Corradino

Google
Good value for money, but the guide refused to summarize the tour in English, plus we did not get a look at the stars and honestly that's all we came for.

Michael Carruthers

Google
Fantastic guide and a great way to spend 2 hours even if you can’t speak French. Great views and you get to go inside the observatory.