Caves CalemPort cellar on the Gaia waterfront with a short museum and a tasting for adults. The interactive displays hold children's attention while the adults taste. Steps down to the cellars. Free below 5.
Douro Six Bridges CruiseFifty minute boat trip in a traditional rabelo, passing under the six bridges. Departures from the Ribeira and Gaia quays through the day.
Igreja de Santo IldefonsoChurch near the Bolhao market with a front covered in blue and white tiles. Worth a look from the square while walking past.
FreeOutdoor space
Livraria LelloHistoric bookshop with a red spiral staircase and stained glass ceiling. Entry is ticketed and timed, and the ticket price comes off a book purchase. No buggies inside, so carry small children.
Palacio da BolsaFormer stock exchange behind the church of Sao Francisco, visited on a short guided tour that ends in the Arabian Room. Free under 12. Buggies are allowed.
Ponte Dom Luis IDouble-deck iron bridge over the Douro. The upper deck is for pedestrians and the metro and gives the better view; the lower deck links the Ribeira to the Gaia quays.
FreeOutdoor space
Sao Bento StationRailway station whose entrance hall is lined with twenty thousand azulejo tiles showing scenes from Portuguese history. Free, step-free and a good first stop from the centre.
FreeIndoor
Se do Porto (Porto Cathedral)Fortress-like cathedral above the Ribeira. The forecourt is free and gives a wide view over the river, with the cloister ticketed separately.
Teleferico de GaiaShort cable car on the Gaia side linking the waterfront to the top of the bridge, with views over the river. Around five minutes each way.
Torre dos ClerigosBaroque bell tower beside the bookshop, with 225 narrow spiral steps to a panoramic terrace. Free under 10. No buggy access and it gets hot in summer.
Tram 1 to Foz do DouroHistoric tram running along the river from the Ribeira out to the sea at Foz. Around twenty minutes each way, and an easy rest for tired legs.
Outdoor space
Tram 22 (historic tram)Restored wooden tram looping through the old centre. Tickets are bought on board. No space for an open buggy, so fold it or use a carrier.