Seine, arrondissements, RER
Rive Gauche vs Rive Droite; zones 1–5 Navigo CDG optional.
Карта
Seine splits Left Bank Latin Saint-Germain vs Right Bank Louvre Marais Champs. Marais (3e/4e) — Jewish quarter galleries falafel. Saint-Germain (6e) — cafés pricey sit vs bar. Montmartre (18e) — Sacré-Cœur hill buskers peak PM. Champs-Élysées (8e) — tour bus zone menu traps. Canal Saint-Martin (10e) — picnic local vibe. Versailles — RER C ~45 min not walking distance ever.
Развилка
Marais/Latin = walk museums + bistro. Champs hotel = convenience + trap cafés. Montmartre = views + stairs; metro Abbesses better than bus.