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Courthouse-grade security: no glass containers at all, no sharp object however small (confiscated, not returned). Arrive exactly at 09:00, the process doesn't run early.

Sainte-Chapelle · Conciergerie · Notre-Dame (tentative) · the Champs · Saint-Germain
Keep the 09:00 Sainte-Chapelle and 11:00 Conciergerie reservations. Lunch, then leave a generous three-hour block for Notre-Dame if a free same-day slot is secured; the walk to the Arc and the evening avenue walk remains flexible. Laundry moved to Sunday evening before the early Eurostar.
Carry your passport Bring both passports for the booked sights; Sainte-Chapelle has airport-style security (it's inside the courthouse). No Louis Vuitton appointment today.
Optional, before the day starts. A 1-hour gym session or a run (nearest option is on the Paris page), and an afternoon nap block is built into the schedule below, take it on the long days.
* free with the Museum Pass, no cancellation fee, nothing lost if plans change.
+ add this day to your calendarSkip going up the Arc (€16 each) Galeries Lafayette's rooftop is free, higher, and looks at the Arc and the tower. If you're making the big purchase, do it at a smaller boutique in Saint-Germain (not the flagship, hours of queue) and make sure they hand you the tax-free form there. You validate it tomorrow at the PABLO kiosk in the Eurostar terminal at Gare du Nord, not at any airport.
Dr. Trace & Dr. LetiCafé de Flore, the Instagram one. Les Deux Magots right next door is the same thing with less theatre. Watch pockets hard in the Latin Quarter and on line 1.
Dr. Trace & Dr. LetiRain, the covered passages (Galerie Vivienne, Passage des Panoramas) between the Palais-Royal and the Grands Boulevards, 19th-century arcades, shops, tea rooms.
House pickSainte-Chapelle is booked at 09:00; Conciergerie at 11:00. Notre-Dame around 14:00 is tentative pending same-day free release. The Galeries Lafayette roof near sunset is an optional early-finish detour. No LV appointment today.
House pick| Option | Added | Note |
|---|---|---|
| Opéra Garnier, self-guided tour | +$30 | the grand staircase, the Chagall ceiling; near Galeries Lafayette |
| A Marais wine tasting or food tour | +$90 | Dr. Trace & Dr. Leti: “French wine tasting would be really cool” |
Estimates. Swap in the real figure as you go.
| Sainte-Chapelle (on Museum Pass) | $0 |
| Conciergerie (on Museum Pass) | $0 |
| Lunch, Le Comptoir du Relais | $45 |
| Dinner, Les Antiquaires | $95 |
| Today, Paris | $140 |
Flights and the places to stay are on the costs page, not counted here.
Written after the day: what you did, what you loved, what you'd skip, the photographs, a voice note or two. It fills in here and in the album.