For our final day in Lisbon, we took things down a notch. After the whirlwind day-trip loop through Sintra and Cascais, we wanted a day focused purely on soaking in the city at our own pace—walking through its distinct neighborhoods, enjoying the sea air, and visiting one of the most remarkable marine centers in the world before flying home.

Strolling Lisbon’s Changing Face

We spent our morning walking around Lisbon, taking in the fascinating contrast between its historic core and its cutting-edge modern districts.

As we walked along the riverfront toward Parque das Nações (Park of the Nations), it was hard not to admire the famous calçada portuguesa underfoot—the intricate, hand-laid limestone and basalt cobblestone pavements arranged in mosaic patterns throughout the city.

Parque das Nações itself offers a completely different perspective on Lisbon. Once a derelict industrial dockland, the entire riverfront was redeveloped for the 1998 Lisbon World Exposition (Expo ’98), transforming it into a sleek, ultra-modern pedestrian zone filled with futuristic architecture, cable cars, and open-air artwork.

The Main Event: Oceanário de Lisboa

The highlight of our final day was spending hours exploring the Oceanário de Lisboa (Lisbon Aquarium), consistently ranked as one of the best aquariums in the world.

A Masterpiece of Marine Design

Unlike traditional aquariums with isolated tanks, the Oceanário is built inside a striking building floating in a ocean basin along the Tagus River, accessible via a footbridge.

The entire layout centers around one massive, 1.3-million-gallon central tank that extends across two floors. Around this central ocean swim pelagic giants—including massive sand tiger sharks, graceful manta rays, and the elusive, prehistoric-looking Mola mola (ocean sunfish). Surrounding the main tank are four separate habitat bays representing four distinct ocean ecosystems:

• The icy coasts of the Antarctic
• The rocky Atlantic shoreline
• The lush kelp forests of the Temperate Pacific (home to adorable, playful sea otters!)
• The coral reefs of the Tropical Indian Ocean

Standing in front of the floor-to-ceiling acrylic panels feels less like looking into a fish tank and more like scuba diving at the bottom of the open sea.

Deep Historical Context: Celebrating 500 Years of Exploration

The Oceanário wasn’t built just for entertainment—it was created as the centerpiece of Expo ’98, which was themed “The Oceans, a Heritage for the Future.”

The year 1998 marked the exact 500th anniversary of Vasco da Gama’s arrival in India in 1498. The aquarium’s global design concept was intentional: to show that despite humanity dividing the planet into different oceans, there is really only one global ocean connecting all nations across Earth.

🇺🇸 USA Connection: The Oceanário was designed by renowned American architect Peter Chermayeff and his team at Cambridge Seven Associates in Boston, Massachusetts. Chermayeff, an pioneer in modern aquarium design who also designed the National Aquarium in Baltimore and the Osaka Aquarium in Japan, engineered the Lisbon structure to resemble an aircraft carrier or floating sea platform anchored to the riverbed.

Back to Reality

After a peaceful afternoon watching the marine life, grabbing one last Portuguese coffee along the promenade, and soaking in the afternoon sun, it was time to pack our bags and head to the airport.

From the magic of Disneyland Paris right into European Country #7, this trip was an incredible mix of historic monuments, world-famous pastries, coastal cliffs, and vibrant city streets. Lisbon welcomed us with open arms, incredible hospitality, and memories that will last a lifetime.

Now, it’s back to reality—until our next adventure!