
World Oceans Day: how the sea connected the world
On World Oceans Day, discover how the sea connected continents in the 15th century and why it remains one of the world’s great routes of connection.

On the eve of São João, streets, squares, balconies and the banks of the Douro are transformed into one great popular gathering, where tradition, music, food, light and a strong desire to celebrate all come together.
And in Miragaia, that celebration takes on a character of its own.
Among narrow streets, old houses, steps, open windows and the river right beside it, Miragaia lives São João in an intense and intimate way. More than simply watching the celebration, here you feel it. It arrives through the smell of grilled sardines, the sound of traditional music, the plastic hammers passed from hand to hand and the conversations that cross the street as if everyone were part of the same table.
For many people from Porto, the eve of São João is the most special night of the year. By late afternoon, the city begins to take on another rhythm. Families and friends gather for dinner, grills are lit, basil pots appear with popular rhymes and the streets fill with people ready to celebrate.
The symbols are well known: the plastic hammer, the leek, São João balloons, sardines, grilled pork, caldo verde and the street festivities spread throughout the city. Some stay in Baixa, others choose Ribeira, others head to Foz, while some prefer the more traditional neighbourhoods, where the celebration remains closely tied to the local community.
Miragaia is one of those places.
In Miragaia, São João has a very human scale. The celebration takes place in the squares, in the streets, on doorsteps and at the windows. There are residents following the night from their balconies, groups gathering outside, visitors passing through on their way to Ribeira or the riverside road, and families determined to keep this tradition alive year after year.
The closeness to the Douro makes everything even more special. The river is one of the great settings of São João night, especially during the fireworks, when thousands of people gather along the banks to watch the sky light up above the city. In Miragaia, you can feel that old connection between Porto and the river: a relationship built on work, travel, trade, memory and encounter.
That is why celebrating São João in this part of the city is also a way of understanding Porto more deeply. Not only monumental Porto, but the Porto that is lived, popular and rooted in its neighbourhoods.
After the great night of 23 to 24 June, São João Day has a different rhythm. As it is a municipal holiday in Porto, the city wakes more slowly. The streets still show signs of the previous night’s celebration, the Douro riverbanks welcome quieter strolls and many people use the day to spend time with family, rest or rediscover the city at a gentler pace.
In Miragaia, that contrast is especially beautiful. After the energy of the night, the neighbourhood once again reveals its details: old façades, closeness to the river, historic corners and its natural connection to some of the city’s most interesting places.
And it is precisely here that a visit to World of Discoveries makes perfect sense.
Located in Miragaia, by the Douro, World of Discoveries is an excellent suggestion for those who want to use São João as an opportunity to better understand Porto’s history and its connection to the sea.
This interactive museum and theme park invites both children and adults to embark on a journey through the age of the Portuguese Discoveries, exploring maritime routes, cultures, vessels and adventures that helped connect different parts of the world.
After a night in which Porto celebrates its popular identity in the streets, visiting World of Discoveries is a way of continuing that discovery in another form: stepping into history, understanding the importance of the sea and looking at the Douro as the starting point for many journeys, both real and imagined.
For families, schools, national visitors and international tourists, it is an especially interesting experience because it combines learning, entertainment and contact with an essential part of Portuguese history.
At first glance, São João and the Discoveries may seem like different themes. But both say a great deal about the city.
São João reveals the Porto of popular traditions, of the street, of sharing and of community. World of Discoveries reveals the Porto connected to the sea, to navigation, to curiosity and to encounters between cultures.
What they share is the idea of movement: going out into the street, following the river, discovering paths, bringing people closer together.
So, if you are going to experience São João in Miragaia, take the opportunity to discover the neighbourhood during the day as well. Walk by the Douro, observe the city at a gentler pace and step into World of Discoveries for a journey that begins in Porto but crosses oceans.
Because during São João the city is celebrated. And at World of Discoveries, an important part of its history is revealed.
This São João, among plastic hammers, basil pots, sardines and fireworks, there is also space to learn, explore and travel through time.
World of Discoveries awaits you in Miragaia, one of Porto’s most special neighbourhoods, for an interactive experience dedicated to the Portuguese Discoveries and the maritime adventure that shaped the country’s history.
After the celebration, continue the journey with us.

On World Oceans Day, discover how the sea connected continents in the 15th century and why it remains one of the world’s great routes of connection.

On World Children’s Day, World of Discoveries invites young explorers to discover maps, clues, challenges and the spirit of adventure.

Discover why a Museum of the Discoveries still matters today, how museums help connect divided worlds, and why Porto is central to this story.
World of Discoveries
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