Châtelet is a station on lines 1, 4, 7, 11 and 14 of the Paris Métro in the centre of medieval Paris and the 1st arrondissement. The station is made up of two parts connected by a long corridor:
lines 7 and 11 under the Place du Châtelet and the Quai de Gesvre (site of the original medieval river port of Paris), next to the Seine; lines 1, 4 and 14 towards Rue Saint-Denis and the Rue de Rivoli. Châtelet is connected by another long underground corridor to the southern end of the RER station Châtelet – Les Halles, the northern end of which is again connected to the Métro station Les Halles. The walking distance from Line 7 at Châtelet to the RER lines at Châtelet – Les Halles is circa 750 metres.