15 Top Things to Do on Île de la Cité, Paris

Île de la Cité is the heart of Paris. It’s one of the oldest parts of the city and home to some of its most famous landmarks, like Notre-Dame Cathedral and Sainte-Chapelle.

This small island on the Seine is full of history, quiet streets, hidden gardens, and beautiful views. Whether it’s your first time in Paris or you’ve been before, it’s a must-visit.

First, let’s locate all these places on a map:

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Notre-Dame de Paris

notre dame paris

Notre-Dame de Paris is one of the most famous cathedrals in the world.

Built in the 12th century, it is known for its beautiful stained glass, tall towers, and Gothic architecture.

After a major fire in 2019, it was carefully restored and reopened to the public in December 2024.

Due to high visitor demand and capacity limits (around 3,000 people at a time), it is highly recommended to reserve a free time slot online in advance to guarantee entry and avoid long waiting times, which can be 2-3 hours or more during busy periods

The reservation is free and can be made through the official Notre-Dame de Paris website or mobile app, with time slots released daily at midnight (Paris time) for up to two days in advance.

 

Paris “Point Zero”

 

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This small bronze marker on the ground is called Paris Point Zero. It marks the exact center of the city and is the starting point for measuring distances from Paris to other places in France.

Many people walk past it without noticing, but it’s a fun hidden detail right in front of Notre-Dame.

Highlights:

  • Official center of Paris
  • A fun photo spot many tourists miss

 

Square Jean XXIII

 

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Une publication partagée par Y.G (@sweet.world.of.mine)

This quiet little park is right behind Notre-Dame Cathedral. It has benches, trees, flowers, and a great view of the back of the cathedral, including its famous flying buttresses.

It’s a peaceful place to rest during your walk around the island.

Highlights:

  • Calm green space with shade
  • Unique view of Notre-Dame’s back side

 

Sainte-Chapelle

Sainte-Chapelle is a small Gothic chapel famous for its stunning stained glass windows.

The colorful glass tells Bible stories and fills the space with light.

It was built in the 1200s to hold royal religious relics.

It’s located inside the old royal palace and is one of the most beautiful hidden gems in Paris.

Highlights:

  • Huge stained glass windows
  • Peaceful, historic atmosphere

Information and booking

 

Conciergerie

Conciergerie

The Conciergerie is a medieval building that was once a royal palace and later a prison during the French Revolution.

Marie Antoinette was held here before her execution.

You can visit the old prison cells and see where history happened. It’s located right next to Sainte-Chapelle.

Highlights:

  • Marie Antoinette’s prison cell
  • Impressive medieval architecture

Information and booking

 

Pont Neuf

 

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Pont Neuf is the oldest stone bridge in Paris. Despite its name (“New Bridge”), it was finished in 1607. It connects both sides of the Seine and crosses over the island.

You’ll find statues, benches, and great views of the river.

It’s a great spot for a photo or a walk.

Highlights:

  • Beautiful views of the Seine
  • Historic architecture and sculptures

 

Vedettes du Pont Neuf

These river cruises leave from just under the Pont Neuf. The boat ride takes you past Paris’s most famous landmarks like the Eiffel Tower, Notre-Dame, and the Louvre.

It’s a relaxing way to see the city from the water. You can buy tickets on-site or online.

Highlights:

  • Affordable Seine river cruise
  • Great views of Paris from the boat

Information and booking

 

Archaeological Crypt

The Archaeological Crypt is a small underground museum right in front of Notre-Dame.

It shows the remains of old Paris streets and buildings from Roman times and the Middle Ages.

It’s cool and quiet inside, with signs in English and French.

Highlights:

  • Underground ruins of old Paris
  • Great for history lovers

Information and booking

 

Memorial to the Martyrs of the Deportation

 

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This memorial honors the 200,000 people sent to Nazi camps from France during World War II.

It’s located behind Notre-Dame, at the far end of the island.

The space is quiet and respectful, with stone walls, metal bars, and lights to represent the lives lost.

Highlights:

  • Powerful tribute to WWII victims
  • Quiet place for reflection

 

Pont Saint-Louis

 

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This short pedestrian bridge connects the two islands. It’s a popular spot for street musicians and performers.

You get lovely views of the river and both islands. It’s a nice place to stop and enjoy the atmosphere.

 

Rue Chanoinesse

 

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This quiet street behind Notre-Dame is full of old buildings and charm. Some of the houses here date back hundreds of years.

It’s a peaceful place, away from the crowds.

It’s also known for having secret courtyards and a bit of mystery—including old legends from medieval times.

Highlights:

  • Hidden street with historic houses
  • Calm spot near Notre-Dame

 

Au Vieux Paris d’Arcole

 

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This small restaurant looks like it came from a fairy tale.

The outside is covered in flowers and vines, and the inside has old furniture and candles.

It’s famous for its beautiful facade and cozy atmosphere. Many people stop here just to take a photo.

Highlights:

  • One of the prettiest restaurant fronts in Paris
  • Romantic, old-style decor

 

Place Dauphine

 

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This peaceful square is hidden near the Pont Neuf bridge.

It’s shaped like a triangle and lined with trees, benches, and quiet cafés.

Many locals come here to relax or play pétanque (a French ball game).

It feels like a small village in the middle of Paris.

Highlights:

  • Quiet square with cafés and benches
  • Feels hidden and local

 

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    Flower Market (Marché aux Fleurs Reine Elizabeth II)

     

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    Une publication partagée par ExploreFrance_AR (@explorefrance_ar)

    The Flower Market on Île de la Cité is a small, open-air market in the center of Paris.

    It’s been there since 1808 and sells all kinds of plants, flowers, and garden items.

    You’ll find colorful flowers, orchids, and even small trees. It’s open every day except Monday.

     

    Square du Vert-Galant

     

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    This little park is at the very end of the island, right under Pont Neuf.

    It’s named after King Henri IV, who was known for his many love stories.

    The square is surrounded by water and has a peaceful, romantic feel.

    It’s a great place to rest and watch the boats go by.