Take Metro Line 1 from Gare de Lyon to Charles de Gaulle - Étoile, then transfer to RER Line C to Champ de Mars-Tour Eiffel for quick access to the Eiffel Tower Gardens. Total travel time approx 40 mins.
Board a Seine river cruise from Pont d'Alma, near Eiffel Tower, lasting about 1 hour. The boat tour offers stunning views of Parisian landmarks along the water.
Take Metro Line 6 from Bir-Hakeim to Charles de Gaulle - Étoile, then Line 1 and finally Line 4 to Cité station close to Notre Dame. Visit the famous cathedral's exterior and its surroundings.
Board the night hop on hop off bus that picks up at multiple central locations, offering a scenic illuminated view of landmarks including the Eiffel Tower light show. The night tour operates from 7:30pm to 10:30pm.
Take Metro Line 1 from Gare de Lyon to Châtelet then Line 4 to Barbès - Rochechouart; from here the Montmartre area and Sacré-Cœur Basilica is a short walk.
Savor a fresh, varied vegetarian lunch near the Louvre. Alternatively, opt for a vegetarian-friendly bistro nearby that serves classic French dishes without meat.