Jardins do Palácio de Cristal

The city's parks page states the access condition in two words — Acesso Livre, free access — and lists no price, no reduced fare and no ticket office. That covers the gardens themselves, the formal Émile David parterres at the entrance, the informal woodland on the west side, the rose garden, the camellia wood, the river terraces, the fountains and the sculpture collection scattered through them. There is no gate to pass, only entrances.

The Biblioteca Municipal Almeida Garrett inside the gardens is a public library with an exhibition gallery, and the city's own description says the gallery is free-entry. It is also the one building here with a roof, which makes it the answer to the obvious rainy-afternoon problem — the rainy day page has the rest.

The Super Bock Arena — Pavilhão Rosa Mota, the round building in the middle of the grounds, is a separate venue. It runs concerts and events with their own promoters and their own tickets, and nothing about it is included in a walk through the gardens. If you have read that you can go inside the dome as part of a garden visit, that is wrong: you go inside it when you have a concert ticket.

Two small things that surprise people. There are no admission-charging glasshouses here of the kind Lisbon has; the plant collections are outdoors and open. And the peacocks that people arrive expecting to photograph are not a municipal exhibit with hours — they are birds in a garden, and the city publishes nothing about them, so we print nothing about their numbers or their whereabouts.

1542–1854: the Field of the Marker Tower, then a chapel for an exiled king

From 1542 this ground was known as the Campo da Torre da Marca — the field of the marker tower — after a tower built here as a reference point for ships entering the mouth of the Douro. In 1854 the Capela Carlos Alberto was raised on the site in honour of the King of Piedmont-Sardinia, who went into exile in Porto after losing the Battle of Novara and died in the city shortly afterwards. The chapel is still there, and almost nobody who walks past it knows who it commemorates.

1865: King Luís opens an iron-and-glass palace

Prompted by the industrial and technological fever of the age and by the international exhibitions in London and Paris, a group of Porto citizens founded the Sociedade do Palácio de Cristal Portuense to build a hall for agricultural, industrial and artistic exhibitions. Agricultural shows were already being held on the Campo da Torre da Marca, so the field was the obvious site. In 1865 King Luís inaugurated the Exposição Internacional Portuguesa inside a palace of iron and glass measuring 70 metres wide by 150 metres long, designed by Thomas Dillen Jones.

Around it, the romantic gardens laid out by Émile David were themselves the statement: a new idea of what leisure in a city could be.

1933–1952: the city buys it, and then knocks it down

Maintenance costs were high and the building never paid for itself. It fell into disuse and was bought by the Câmara do Porto in 1933. In 1951 the Palácio de Cristal was demolished, and in its place went the Pavilhão de Desportos — the sports pavilion, today the Pavilhão Rosa Mota — built to host the 1952 Roller Hockey World Championship. That is the domed building you can see from the gardens and from half of Porto. It is a good deal younger than the name on the gate, and the confusion between the two is why this section exists.

What survived the demolition is the more valuable half: the gardens. The city's own description puts its finger on why they work — the combination of formal parterres with informal woodland, and a position on the ridge that opens several different views of the Douro from within one park.

The formal gardens at the entrance

The Jardim Émile David beds are the first thing inside the gate: clipped, symmetrical, and planted with camellias in the outer borders — the city calls Porto a city of camellias and means it. It is the most photographed corner and the least interesting one; walk through it.

The river terraces on the west side

Keep going west and the ground falls away in terraces towards the Douro. This is the reason to come. The view runs downstream over the rooftops of Massarelos to the Arrábida bridge and the river mouth, and it is entirely free at a moment when the Serra do Pilar terrace is the only comparable free viewpoint in the two cities and the Clérigos tower charges $11.62 (€10) for a higher one.

There are benches along the walk, and no railing to fight for.

The camellia wood and the rose garden

The city names two camellia routes: east from the Rosa Mota pavilion to the Roseiral, the rose garden, with specimens lining the path, and west into the Bosque das Camélias — the camellia wood — which is also the best place to see how the informal half of the garden was designed. Camellias flower in Porto through the winter and into early spring, which makes this one of the few gardens in Europe worth a January visit.

The sculptures, the fountains and the library

Fountains and sculpture of several periods are scattered through the grounds; the city singles out two, A Ternura by Sousa Caldas and A Dor by Teixeira Lopes. The Biblioteca Municipal Almeida Garrett sits on the northern edge with a free exhibition gallery. And the Museu Romântico da Quinta da Macieirinha stands immediately beside the gardens on the same slope — a separate municipal house-museum, listed by STCP as one of the stops on its tram route.

The main entrance is on Rua de D. Manuel II, and the city lists a long line of buses that stop at it. What follows is the shortest version of each approach with what it costs.

Two notes the timetables do not carry. The tram is a scenic ride rather than a transport option: line 18 runs about every 30 minutes between 09:15 and 19:45 and line 1 about every 20 minutes between 08:40 and 20:43, and the fare is separate from every transport pass in the city. And the walk in from the Clérigos end is the one to take if you have any choice — it is level for most of its length and it brings you into the formal gardens at the top of the slope, so you walk downhill towards the river view instead of up towards it.

The variable is not the gardens; it is the hill. Everything below assumes you arrive on foot from the Clérigos end and leave the same way, and includes the walk in each direction.

On when to come: opening at 08:00 all year makes this the earliest thing in Porto you can do, and the hour before nine on the terraces is the quietest, cleanest light of the day. The other good window is the last hour before the gate closes — 21:00 from April to September, which in June is well after the sun has gone down over the river mouth.

Our routing: start here at 08:15 on a clear morning, walk the terraces while the light is still low on the river, and be back east at Livraria Lello or the Clérigos tower for a 09:00 or 09:30 slot — the walk is twelve minutes and gently downhill, so the gardens cost you nothing but the early alarm. That order also means you see the free view before you decide whether to pay for the tower's.

The alternative is the end of the day: the gate does not shut until 21:00 from April to September, later than any ticketed sight in Porto, so this is where an evening goes when everything else has closed. The free things to do page has the other late options.

On a Monday, when the municipal museums shut, the gardens and the library gallery are both open, which puts them near the top of that day's short list. And in the rain, the twenty minutes it takes to cross from the entrance to the terraces is the whole exposure — the rainy day page has the indoor alternatives if that is twenty minutes too many.