Clear immigration and take RER B to central Paris (~35–45 min) or a taxi (~45–60 min). RER is quicker in traffic; taxi is door-to-door and easier with luggage.
Eat at a cosy bistro in the Latin Quarter (eg. Le Relais de l'Entrecôte or a brasserie) for classic steak-frites or a comforting bistro meal; quick and central to start exploring.
See the soaring stained-glass of Sainte-Chapelle (open 9:00am–5:00pm in Nov); it's compact but spectacular and right next to Notre-Dame’s exterior and Île de la Cité.
Stroll the riverbanks, admire Notre-Dame’s façade (interior closed for restoration as of recent years) and pop into Shakespeare and Company bookshop for a Parisian literary moment.
Take a one-hour river cruise to see bridges and illuminated monuments; many departures evening through twilight for great photo light (companies typically run until late evening).
Dine with a view of the Eiffel Tower at a restaurant near Trocadéro (eg. Les Ombres or Le Bistro Parisien) for a romantic meal with landmark views as the tower lights up.
Watch the Eiffel Tower sparkle (every hour on the hour after dark) from Trocadéro; if you booked summit tickets in advance, plan the climb — summit access runs late evening (check ticket time).
Visit the Louvre’s highlights (Mona Lisa, Venus de Milo). Louvre hours are typically 9:00am–6:00pm on Sundays — book a timed entry ticket in advance to skip queues.
Stroll the Tuileries gardens toward Place de la Concorde then along the Champs‑Élysées toward the Arc de Triomphe; it’s a classic Paris route with great photo stops.
Climb (or elevator partway) for panoramic views down the twelve avenues of Paris; the monument is usually open from ~10:00am into the evening, but check seasonal times.
Explore the hilltop village atmosphere, wander Place du Tertre (artists’ square) and visit Sacré‑Cœur Basilica — the basilica is open daily and offers sweeping city views.
Wander the charming streets, visit Place des Vosges, and browse boutiques and galleries; Le Marais is great for a relaxed morning (many shops open from mid‑morning).
If you didn’t visit Day 1, Sainte‑Chapelle is open around 9:00am–5:00pm on Mondays — its stained glass is worth the stop; otherwise enjoy more riverside sights or a short Musée visit (check opening days).