A Walking Route Through the Cité de Carcassonne

Start: Porte Narbonnaise and the Approach Bridge

Begin at Porte Narbonnaise, the main eastern gate of the cité and the entrance most visitors use. Approach across the wooden footbridge from the visitor car parks: stop at the bridge's midpoint to look up at the two enormous round towers flanking the gate. Both are thirteenth-century work, added when the cité was upgraded to a royal stronghold under Louis IX, and they show the difference in style between the older inner walls and the later outer ring. The gate itself contains a small information point and a stone-vaulted passage with murder holes overhead — the medieval defensive details are intact and worth ninety seconds of attention before walking through. Once inside, resist the temptation to follow the main lane straight to the castle; instead, turn left immediately and descend a few steps into the lices for the quieter circuit.

The Northern Lices and the Gallo-Roman Walls

Walk westward along the northern stretch of the lices, the open grass strip between the inner and outer walls. This is the quietest part of the cité in any season; most visitors stay on the cobbled lanes inside the walls. The inner wall on your left contains the clearest Gallo-Roman segments anywhere in the site: small reddish-brown courses of late Roman brick alternating with bands of pale stone, in the technique typical of the fourth century of the common era. The outer wall on your right is largely thirteenth-century, added several centuries later under the French crown. The contrast between the two walls — different stone, different scale, different age — is the single best lesson in how the cité grew across a thousand years of construction.

Continue west until you reach the Tour du Trésau, the largest tower on the inner wall and a working barbican in the medieval defensive layout. From here climb back up into the cité through a stone passage. You will emerge near Place Marcou, the small central square with most of the cité's casual restaurants. Pause here for water if needed; this is also the natural meeting point if walking with a group that has split up. The next leg is the Basilica of Saint-Nazaire, a five-minute walk south along narrow lanes that wind past private houses still occupied by the small resident population of the walled town today as they have been for centuries.

The Basilica of Saint-Nazaire

From Place Marcou follow rue du Plô south, then bear right at the small Place Saint-Nazaire. The basilica is on your right, easily missed because it does not dominate the square from the front. Enter quietly — services may be in progress — and walk down the Romanesque nave toward the Gothic transept and choir. The shift in style is visible at the crossing: heavier round-arched piers behind, lighter pointed-arch ribbed vaults ahead. The stained glass dates mostly from the thirteenth and fourteenth centuries and is among the finest in the Aude. The rose window in the south transept is the single most photographed feature inside the cité; light through it is strongest between roughly 11:00 and 14:00 in summer, later in winter when the sun rides lower in the southern sky each afternoon.

The Château Comtal and Rampart Walk

From the basilica walk back north-east along rue Saint-Louis to the Château Comtal at the western end of the cité. This is the only ticketed section of the route. The visit begins at the gatehouse and follows a fixed circuit through the medieval rooms, the museum lapidaire and the connected rampart walk. Allow about an hour for the castle proper and forty minutes for the ramparts; if time is tight, prioritise the rampart walk over the museum, because the views and the medieval defensive features outside are unique while the museum interpretation overlaps with information panels available elsewhere inside the visit. The rampart galleries with their reconstructed hourdes are the most distinctive feature.

The rampart walk gives the best perspective on the lices you walked earlier from below. It also gives the cité's longest outward view, across the lower town to the Aude valley and, on clear days, south to the foothills of the Pyrenees in the far distance. The walk is one-way at sections and returns you to the castle entrance via the original Trencavel-era stair. From there, walk back through the cité on rue Cros-Mayrevieille, the main commercial spine, which is the busiest part of the day; the contrast with the quieter circuit you have just completed is part of the deliberate sequence of the route and rewards a slow pace.

End: Porte d'Aude and the Pont Vieux

Leave the cité via Porte d'Aude, the western gate, rather than Porte Narbonnaise. The descent from Porte d'Aude winds down the steep western slope of the hill on stone steps and a cobbled path, with the walls towering on your right as you go. This is the most photogenic exit from the cité and is largely unused by coach groups, who return to their car parks on the eastern side near Porte Narbonnaise. At the foot of the path cross the Pont Vieux, the medieval stone bridge across the Aude, and stop at the midpoint to look back. This is the classic postcard view: the double walls and conical roofs rising above the river, framed by trees in the foreground at any time of year.

From the lower-town side of the bridge, the Bastide Saint-Louis — the planned thirteenth-century lower town — is a five-minute walk through Place Gambetta and along rue de Verdun. The lower town has a strong food culture and is the natural place for a long lunch or an early dinner after the cité, with the cassoulet houses and a Friday morning market on Place Carnot as the major draws of the week. From Place Carnot the SNCF station is a further fifteen minutes north on foot, or a short taxi if luggage is a concern. The full route ends here, three hours after Porte Narbonnaise, and gives both the ticketed and free sides of the cité in a single coherent loop.