The Oceanographic Museum of Monaco, what to see first and what to pay

Of every ticket Monaco sells, this is the one I’d keep if I could only buy one. The Oceanographic Museum is a spectacular building clinging to a cliff, an aquarium that ranks among the world’s longest-running and a rooftop with the finest view on the Rock. Here’s what to see first, what to pay and which combined tickets are worth it.

A temple to the sea on top of a cliff

Prince Albert I conceived the museum as a temple devoted entirely to the sea, to display the collections from his expeditions. He set up the foundation that runs it, the Institut océanographique, in 1906, and the museum opened on the afternoon of 29 March 1910, eleven years after the first stone was laid, before envoys from France, Germany, Italy, Spain and Portugal gathered in the lecture hall. The institute’s website says 25 March, but I trust the account the Journal de Monaco printed that same day. Its first director was Jules Richard, appointed in 1900 with the building still going up. The name almost everyone links to the museum came later. Jacques-Yves Cousteau was the third director, from 1957 to 1988.

What strikes me is the scale. It now holds more than 60,000 scientific, natural history, artistic and ethnological objects, and the aquariums house several thousand fish, 200 species of invertebrates and around a hundred species of coral. All of it in a building raised on the cliff face, and from its roof, 85 metres above the Mediterranean, nothing on the Rock stands higher.

My route through the museum

Floor by floor, the museum breaks down like this. The basement has the aquariums and the Sea Turtle Odyssey, partly outdoors. The ground floor has the Hall Princesse Alice and the Salon d’Honneur. The first floor has Oceanomania, the interactive Monaco et l’Océan space and the Whale Room. And right at the top is the roof terrace, with La Terrasse restaurant, the turtle island and a children’s play area.

I’d start by going down. The great shark lagoon is 6 metres deep, holds 450,000 litres of seawater behind 30 cm panes and has four viewing angles, with blacktip reef sharks, grey reef sharks, a nurse shark and a guitarfish swimming in it. It’s the museum’s star turn, which is why I’d see it first thing, before the day fills with groups. After that, the tropical aquarium and the turtles.

Then I’d go up to the first floor for Méditerranée 2050, the exhibition open since March 2025 and included in your ticket. It opens with Oceanomania, artist Mark Dion’s cabinet of curiosities featuring a sperm whale sculpture about 4 metres long, and closes with the immersive Oceano Odyssey. In August 2026 it passed a million visitors. I’d leave the roof until last, because it’s the best place to end.

Is the Oceanographic Museum worth it in 2026?

Yes, with one caveat worth knowing before you pay. The Mediterranean aquarium is undergoing a complete renovation and the website gives no reopening date. Méditerranée 2050, the tropical aquarium, the shark lagoon, the Sea Turtle Odyssey and the roof all remain open. To me it’s still well worth the money, but if you’re returning to Monaco after some years, you’ll notice the gap.

The official website allows about two hours, and with children I wouldn’t plan on less. If you’re bringing them, the museum runs workshops such as «Les animaux du bord de mer», 45 minutes long at €8 a head on top of entry, at weekends and daily in the French school holidays. More family ideas are in Monaco with kids.

Tickets, opening hours and the combined deals worth having

In September 2026 the hours are 10:00 to 19:00; July and August run from 09:30 to 20:00, and October to December from 10:00 to 18:00. The ticket desk shuts half an hour earlier, and the museum only closes on 25 December and during the Formula 1 Grand Prix. Adult tickets start at €20.50, and students and children aged 4 to 17 pay €13.

I’d buy on the official website, which sells dated, timed tickets with priority access. Two details catch plenty of people out here. First, student and disability rates are only sold at the desk. Second, arriving on a ZOU! train gets you €2 off per ticket, but only if you buy at the desk with that day’s train ticket. If you’re coming from Nice by rail, factor that in when deciding how to buy, and the journey itself is covered in Nice to Monaco by train, bus or car.

Combined tickets make sense if you’re doing more than one visit. With the Prince’s Palace of Monaco it’s €31 for an adult while the Palace season lasts, with the Prince’s Car Collection €33 and with the Exotic Garden of Monaco €33, the last one only at the museum desks.

Getting there without climbing the hill

By bus, take the 1 or the 2 towards the Rock and get off at the last stop, the Visitation, a few steps away. On foot from Place d’Armes, the museum suggests going up Avenue de la Porte Neuve or the Rampe Major and then crossing the Saint-Martin Gardens, which is the approach I like best. By car, the Parking des Pêcheurs sits under the museum itself, with over 500 spaces, and lifts and escalators bring you up to the main entrance. The museum is accessible, with lifts, wheelchair loans and a priority till. The rest of the quarter, cathedral and changing of the guard included, I’ve put in order in my guide to Monaco-Ville.