Sunset Catamaran Cruise on the Tagus River Lisbon

Doca de Santo Amaro and the Alcântara riverside

Doca de Santo Amaro is a small marina in Alcântara, the old industrial district west of the centre, tucked directly beneath the approach ramps of the 25 de Abril Bridge. The brick warehouses that once stored goods for the port have been turned into restaurants and cafés with terraces facing the moored boats, and the hum of traffic on the bridge high above is part of the atmosphere.

This is where your Lisbon sunset catamaran trip begins and ends, at door 3 of the marina. It is easy to reach by taxi or ride-hailing in about fifteen minutes from Baixa, or by the suburban train to Alcântara-Mar and a short walk. Arriving a little early lets you stroll the waterfront and watch the late-afternoon light build over the river before boarding.

The 25 de Abril Bridge from the water

Opened in 1966, the 25 de Abril Bridge is a red suspension bridge more than two kilometres long that links Lisbon with Almada on the south bank. It was renamed after the peaceful revolution of 25 April 1974, and since 1999 a railway runs on a lower deck beneath the road, so trains rumble overhead as the catamaran passes underneath.

Seen from the river, the scale of the towers and cables is striking, and at sunset the steel glows deep orange. It is one of the classic views of any Tagus River boat tour, and the catamaran passes beneath it twice, on the way out and again on the return, when the bridge lights start to come on against the evening sky.

Christ the King on the Almada hills

Across the river on the south bank stands the Sanctuary of Christ the King, a statue with outstretched arms on top of a tall pedestal, inaugurated in 1959. Including its base it rises more than one hundred metres above the water, and it was built as a gesture of thanks that Portugal had been spared the destruction of the Second World War.

From the catamaran you see the statue framed beside the bridge, a pairing that sums up the Lisbon skyline. Visiting the viewing platform itself means crossing to Almada by road or ferry, so seeing it from the water is a relaxed way to enjoy it without a separate trip. As the sun drops, the monument turns into a silhouette against the hills.

Belém riverfront: Belém Tower and the Monument to the Discoveries

Further west, the Belém riverfront is the stretch of Lisbon most linked to the Age of Discoveries. Belém Tower, built in the early sixteenth century to guard the entrance to the port, is a small fortress decorated with stone ropes, armillary spheres and watchtowers, and it is listed by UNESCO together with Jerónimos Monastery. Close by, the Monument to the Discoveries rises from the quay in the shape of a ship's prow, lined with figures of navigators and mapmakers.

Seeing Belém from the river is how sailors arriving in Lisbon first saw it, and the catamaran gives you a calm, crowd-free look at both monuments. Behind them, the long white façade of Jerónimos Monastery, begun in 1501 and paid for by the spice trade, appears above the gardens, a lovely sight in the golden light.

MAAT and the old Tejo Power Station

Between Alcântara and Belém the riverbank mixes old and new. The Tejo Power Station is a red-brick coal-fired plant that supplied Lisbon with electricity for much of the twentieth century and now houses an industrial museum with its boilers still in place. Right next to it, the MAAT, the Museum of Art, Architecture and Technology, opened in 2016 in a low, wave-shaped building covered in white ceramic tiles.

From the water the curved roof of the MAAT looks like a ripple rising from the river, and visitors often walk over it to watch the sunset. On board you see both buildings side by side as the catamaran heads towards Belém, a reminder of how the riverfront has been reinvented from docks and factories into one long promenade.

Sunset over the Tagus River mouth

The Tagus is the longest river of the Iberian Peninsula, flowing about a thousand kilometres from eastern Spain before opening into a broad estuary at Lisbon and meeting the Atlantic beyond Belém. Facing west, the river mouth is one of the best places in the city to watch the sun go down, with the horizon open to the ocean.

The crew knows the sunset times through the year and plans the route so the boat is at its furthest point, looking towards the sea, as the sun sets. If you are wondering what to do in Lisbon at sunset, this is a strong answer: the light softens over the water, the monuments glow, and the trip back to the marina passes the bridge as the city lights come on.