Land at CDG Airport and aim to be on the RER B around 8:45–9:15 am if baggage is moving quickly; the ride to Saint-Michel–Notre-Dame is usually about 35–40 minutes, and with the transfer plus a short walk toward the 7th you should budget roughly 60–75 minutes door to door. Keep this first stretch light and efficient—buy your ticket or Navigo Easy top-up before boarding, and if you’re carrying multiple bags, don’t overthink the city transit puzzle yet; just get to the Left Bank and settle into the rhythm of Paris. If you want a coffee upon arrival, there are easy grab-and-go options around Saint-Michel before you begin the sightseeing loop.
Start with Cathédrale Notre-Dame de Paris from the outside first, since the island setting is part of the experience: the river edges, the square in front, and the view back toward the Seine are all worth lingering over. Morning is best here because the area is calmer before lunch and the light is softer for photos. From there, it’s an easy walk to Sainte-Chapelle, which is one of those places that absolutely rewards a sunny late morning; the upper chapel’s stained glass really glows when daylight is strong. Tickets are usually around the mid-teens, and lines can build, so booking ahead is smart if you want to keep the day flowing.
Continue on foot to the Musée du Louvre for the exterior visit and the classic pyramid shot, then head into the Jardin du Carrousel for a slower break. This is a good place to breathe between major landmarks instead of rushing through the center—Parisians do a lot of their best daydreaming in gardens like this. For lunch, Boulangerie Eric Kayser - Jardin du Carrousel is a practical choice for a sandwich, quiche, pastry, and coffee; expect about €12–20 per person and 30–45 minutes if you keep it simple. If the bakery is busy, any nearby café in the 1st arrondissement works, but this one keeps you right on route and avoids a detour.
After lunch, head back toward 17 Quai Louis Bleriot to drop bags and unpack before the evening cruise—this makes the rest of the day feel much easier. Then go to the Eiffel Tower area for your 1-hour river tour; the best approach is to arrive 20–30 minutes early so you’re not rushing the boarding, and if you have time before departure, a quick walk along the river near Pont de Bir-Hakeim is a great way to set the mood. After the cruise, keep dinner flexible: the area around the 7th arrondissement and the 16th has plenty of straightforward brasseries and wine bars, and if you’re tired, it’s completely reasonable to head back to the VRBO and call it a win—this is already a very full first day.
Start early at Carette on Place du Trocadéro if you want the classic Paris breakfast-and-view combo: a cappuccino, a flaky croissant, maybe tartine or eggs, all in that very polished Belle Époque café setting. Expect around €12–25 per person, and if you arrive before the mid-morning rush you’ll usually get seated faster; they open early and move efficiently, but service gets slower once the terrace fills. From there, make your way to Château de Vincennes by metro, aiming to arrive late morning so you can spend a full 2 hours without feeling rushed. It’s a straightforward cross-city trip from the 16th to the eastern edge of Paris, and the fortress is worth it: moats, towers, a huge medieval keep, and a quieter feel than the central monuments. Entry is usually around €13, and the best pacing is to start outside for photos, then explore the keep and the grounds before heading back west.
Head back toward Montmartre and give yourself time to enjoy the climb to Sacré-Cœur Basilica instead of rushing straight to the top. The basilica itself is free, though the dome is extra if you want the view, and the real charm is the neighborhood walk: little lanes, stone stairways, and that slightly scruffy-artsy Montmartre energy around Rue des Abbesses and Place du Tertre. For a bite on the way, keep it simple with a sandwich, crêpe, or a bakery stop rather than sitting down for a long lunch—this part of the day works best if you stay light and keep moving. If the weather is clear, linger on the steps a bit; the panorama over Paris is one of the best in the city, especially before the afternoon haze builds.
From Montmartre, make your way to the Latin Quarter and slow things down at Musée de Cluny – Musée national du Moyen Âge. It’s a smart pivot after the hilltop crowds: quieter, airier, and full of medieval tapestries, sculpture, and the old Roman baths tucked into the museum building. Budget about 1–1.5 hours here; tickets are usually around €12–15, and it’s a place where an unhurried visit pays off. Then walk a few minutes to the Panthéon, which gives you a completely different mood—monumental, solemn, and deeply Parisian. The dome, the crypt, and the big square outside make it an easy one-hour stop, and because the two sites are so close you won’t waste time on transit.
Finish with the Catacombs of Paris in the 14th arrondissement, but do this with realistic expectations: queues can be long, tickets sell ahead, and the visit itself is only about 45 minutes inside, but with line time you should allow around 1.5 hours total. It’s cool underground year-round, so bring a layer, and the experience is very different from the rest of the day—more atmospheric than scenic, more memory than postcard. Afterward, if you still have energy, walk toward Montparnasse for dinner in the surrounding streets; Rue Daguerre is practical for casual food, and the area around Avenue du Maine has lots of easy brasseries and crêperies. If you’re done for the day, this is also a good point to head back slowly rather than forcing one more stop—the southern metro connections are simple, and Paris rewards ending before you’re exhausted.