Comacchio: The Canal Town, the Po Delta, and the Eel

Comacchio sits in the middle of the Po Delta wetlands, surrounded on all sides by brackish lagoons. It is connected to the mainland by a series of bridges, its streets follow the same logic as canals, and its economy for most of the last two thousand years has depended on a single creature: the European eel. The town is in the province of Ferrara, 40 kilometres from the city, and is one of the most distinctive places in Emilia-Romagna — a canal town without the crowds of Venice, a wetland without the wildness of a national park, a food tradition that exists nowhere else in the region.

The Town

Comacchio’s historic centre is built across a cluster of small islands connected by bridges. The most photographed structure is the Trepponti — a five-arched brick bridge from 1638 that carries five separate staircases to five different landing points, built at the junction of several canals. It is the symbol of the town and the best place to understand how Comacchio works: a place designed around water, where movement between streets means crossing a bridge.

The historic centre is small enough to walk in an hour. Via Cavour, the main street, runs from the Trepponti past the Cathedral and the former eel smoking factory (now a museum) to the Loggiato dei Cappuccini, a 17th-century portico overlooking the main canal. The architecture is modest — low brick buildings, painted shutters, no grand Renaissance palaces — which is part of the point. Comacchio was always a working town, sustained by fishing rather than court culture. What it has instead of monuments is atmosphere: the light on the water in the morning, the silence away from the main street, the smell of the lagoon.

The Valli di Comacchio

The wetlands surrounding the town — the Valli di Comacchio — are part of the Po Delta Regional Park, one of the largest protected wetland areas in Italy. The valleys are brackish lagoons, shallow and warm, with reed beds and open water alternating across the flat horizon. The landscape is unlike anything else in Emilia-Romagna: no hills, no vineyards, no medieval towers — just water, sky, and birds.

The birdlife is the main attraction outside the town itself. Flamingos have nested in the Valli di Comacchio since the 1980s and are now a reliable presence from March through November — the largest colony is visible from the road between Comacchio and Porto Garibaldi. Herons, egrets, cormorants, avocets, and several species of tern are present year-round. The valley is on the main autumn migration corridor, which makes October and November particularly good for birdwatching alongside the Sagra dell’Anguilla.

Boat tours of the valleys depart from the town and last 1–2 hours, travelling through the reed channels in traditional flat-bottomed boats. The same boat types — called batane — were used by eel fishermen for centuries and are still used by the cooperatives that manage the modern eel harvest. Book through the visitor centre or the local fishing cooperatives; tours run from spring through autumn.

The Eel

The European eel (Anguilla anguilla) has been fished from the Valli di Comacchio since Roman times. The eel’s life cycle is extraordinary — it is born in the Sargasso Sea in the Atlantic, spends most of its adult life in fresh or brackish water across Europe, then returns to the Atlantic to breed and die. Comacchio sits at the point where the eels moving inland from the Adriatic enter the Po Delta lagoons, which made it one of the most productive eel fishing grounds in Europe for two millennia.

Traditional eel fishing in the valleys used a system of lavorieri — fixed weir traps built at the points where the lagoon channels narrowed — that exploited the eels’ instinct to move toward the sea in autumn. The autumn migration, triggered by falling temperatures and the shortening day, drove thousands of eels through the lavorieri each night between October and December. The fishing cooperatives of Comacchio still use a version of this system, though the European eel is now critically endangered and catch volumes are a fraction of their historical levels.

What to Eat

Eel is eaten in several ways in Comacchio. Anguilla marinata is the most traditional preparation: eel cut into sections, roasted on a grill or in the oven, then preserved in a marinade of wine vinegar and bay leaves. The marinade was originally a preservation technique — it kept the cooked eel edible for several weeks without refrigeration — but the flavour it produces became the standard. Slices of marinated eel are served cold or at room temperature, with polenta.

Anguilla arrosto — simply grilled eel — is the other main preparation, eaten hot with polenta or bread. The flesh of the eel is fatty and rich, which makes it well-suited to the grill; the fat renders and the exterior chars slightly while the interior stays soft. A third preparation, anguilla in umido, braises the eel in tomato sauce with wine and herbs — heavier and more suitable to autumn and winter.

Beyond eel, the restaurants of Comacchio serve the other fish of the lagoon: sea bass, gilt-head bream, mullet, and the small Adriatic blue fish — sardines, mackerel, anchovies — that arrive from the coast a few kilometres away. A full fish lunch in Comacchio typically runs through a sequence of lagoon and sea preparations: marinated eel, grilled fish, pasta with clams or mussels, fried mixed fish. Eat at one of the trattorias on or near the main canal rather than the tourist-facing restaurants near the Trepponti.

Manifattura dei Marinati

The Manifattura dei Marinati is a restored 18th-century eel smoking and curing factory on the main canal in the historic centre — the industrial building where caught eels were processed before being shipped across Italy. The building is now a museum that explains the entire production chain: the fishing, the sorting, the smoking process, and the vinegar marinade preservation. The original equipment — the smoking chimneys, the sorting tanks, the storage vats — is still in place. It is the most informative place in Comacchio to understand what made the town economically significant for two thousand years. Open year-round; allow 45 minutes.

The Sagra dell’Anguilla

The annual Eel Festival runs across the first two weekends of October and is the largest event in Comacchio’s calendar. Market stalls along the canals sell marinated eel, grilled eel, eel with polenta, and the other fish of the lagoon alongside local wine and produce. The cooperative fishing boats open for visits. The Manifattura runs extended hours and often hosts live demonstrations of traditional eel processing. The town is busy — accommodation should be booked several weeks ahead — but the festival is the moment when the town’s identity and food tradition are most visible, and the best time to eat eel in the context in which it was always eaten.

Getting to Comacchio

From Ferrara by bike: The most rewarding way to arrive. The Po Delta cycle route from Ferrara covers about 40 km through the wetlands and reaches Comacchio after 2.5–3 hours at a relaxed pace. Return by train (about 40 minutes; bikes permitted in the cycle carriage). See our Ferrara cycling guide for the full route.

By bus from Ferrara: TPER buses run from Ferrara to Comacchio in about 50 minutes. Frequency varies by season — check timetables at the Ferrara bus station or online before travelling. The bus is the most practical option in winter or bad weather.

By car from Bologna: About 1 hour 10 minutes on the A13 motorway to Ferrara Sud, then provincial roads through the delta. Parking is available on the edge of the historic centre. A car allows flexibility to stop at the flamingo viewing points along the Valle di Comacchio road.

For the full cycle route from Ferrara to Comacchio, see the Ferrara cycling guide. For the city of Ferrara itself — the castle, the Palazzo dei Diamanti, the city walls — see the Ferrara visitor’s guide, the Ferrara food guide for what to eat in the city, and the Ferrara day trip itinerary for combining both destinations in a day from Bologna. For exploring Ferrara on foot before or after cycling to Comacchio, see the Ferrara walking route.