Take a cruise upriver (the cost starts at €15 (although they can be slightly cheaper if paired with a different activity) and takes about 50 minutes. Cruises run from 10:00 to 18:30, with sailings every 30 minutes for most operators. There are multiple river cruise operators and you can purchase a ticket from every tourist service and office in the Sao Bento area, or potentially from the wharf itself. Many of the cruises are themed around seeing the various bridges and river-adjacent facilities. You may also choose a day-long cruise starting at €70 to or from Régua, with one way of the journey completed by bus (included in the price). This tour states at 08:00 and returns at 17:00 or 18:00. Go at least as far as Pinhão — the landscape is absolutely stunning. If you choose to do this in the summer, don't forget your factor 30 sunscreen! Look for cruises based on the Vila Nova de Gaia wharf (the same side as the port wine caves), as some of them may offer discounts for cave tours or port wine purchases.
Stock Exchange Palace
It was built in the 19th century on the grounds of the destroyed old cloisters of the adjacent São Francisco church. It also contains the most impressive Arab room in the country. There is also a Port wine tasting room.
Porto Cathedral
This Romanesque cathedral was built in the 13th century. Later on Baroque alterations were made in the 17th and 18th century. The cathedral is on top of a hill from where you also have great views over the city and the river.
A small exhibition about Port wine and its certification process. Samples of a small variety of Port wines can be bought. Guided tastings and tours to the laboratories can be arranged.
Church of Saint Francis
A Gothic church with later alterations of the interior decorations in Baroque style.
A traditional market of fruits, vegetables, fish and meat. As of 2022 the entire market is now open after major refurbishment.