Planeta Aqua in Barcelona: Underwater hidden life

Planeta Aqua reveals how marine life has managed to thrive in some of the planet’s most challenging environments.

Throughout the visit, guests will discover themed aquariums, interactive games, and educational spaces designed to explore marine biodiversity in a visual, accessible, and engaging way.

A journey through the most extreme environments of the planet

The other side of the Earth

Though more than 70% of the Earth’s surface is covered by water, we only know a small part of the oceans and the species living there.

Planeta Aqua in Barcelona invites visitors to understand:

  • How do animals survive in extreme conditions 
  • Which biological adaptations have they develop
  • Why marine conservation is essential to the balance of our planet

The exhibition showcases the incredible adaptability of marine life. Observing these animals up close inspires visitors to protect the sea. Conservation begins with a glance, an emotion, a visit.

Discover up close how we care for our animals

Humboldt Penguins

The penguins at L’Aquàrium de Barcelona belong to the Humboldt penguin species.

The Planeta Aqua area features a recreated climatic habitat containing 120,000 litres of water, specially designed to reproduce the natural conditions of the South American Pacific coast.

The 17-metre panoramic pool allows visitors to observe these birds both on land and swimming underwater, one of the most popular experiences at L’Aquàrium de Barcelona.

Public Penguin Feeding

What do Humboldt penguins eat?

At L’Aquàrium, you can watch the Humboldt penguins being fed live.

Plan your visit so you don’t miss this experience

Swimming Humboldt penguins at l´aquarium de Barcelona
Humboldt penguin colony at Planeta Aqua, adapted to cold Pacific waters.

Jellyfish: The Butterflies of the Sea

Inside this life-size reproduction of a sperm whale, visitors can discover the fascinating world of Mediterranean and tropical jellyfish.

Although they are often perceived simply as stinging animals, jellyfish are extraordinary organisms from a biological point of view. Their life cycle includes transformations that resemble the metamorphosis of butterflies.

This exhibition helps visitors understand:

  • Their importance in the balance of marine ecosystems
  • Their role in food chains
  • The diversity of species found in seas and oceans
Jellyfish inside the whale-shaped exhibition in Barcelona
An immersive installation that reveals the metamorphosis and diversity of jellyfish.

Tropical Ecosystems and Rivers of the World

This area recreates the complete journey of a tropical river, from its source in the mountains to its mouth in the sea.

Visitors can discover its main sections — upper, middle, and lower course — as well as the transition to mangroves, ecosystems that are essential for the reproduction and feeding of many species.

In this area, you’ll discover how rivers connect terrestrial and marine ecosystems

Recreated Tropical River Ecosystem at the Aquarium in Barcelona
La parte del recorrido por los tramos del río hasta su desembocadura en el mar.

Open Ray tank: A Lagoon Habitat in Barcelona

Rays, close relatives of sharks, are cartilaginous fish. They are characterised by their flattened bodies and large pectoral fins, which allow them to “fly” underwater.

A 20,000-litre tank is one of the spaces where rays display their natural behaviour, making it a must-see stop for families visiting Barcelona and looking for a memorable experience..

Here, the rays glide just a few centimetres from the glass, creating a moment that amazes children and surprises adults alike.

That is why this area is an essential stop for families visiting L’Aquàrium de Barcelona.

Enjoy a close-up experience with rays

Swimmimg rays in open tanks at l’aquarium Barcelona
Rays glide gracefully through one of the aquarium’s most spectacular tanks.

Deep-Sea Animals: The Gliders of the Sea

Many of these rays were born at L’Aquàrium de Barcelona, reflecting its commitment to animal welfare, responsible breeding, and marine conservation.

Species present:

Learn more about rays

Discover and watch the fascinating feeding of the rays

Plan your visit so you don’t miss this moment

Want to know how rays are cared for at L’Aquàrium ?

Marine Survival Strategies

Did you know that some fish can change colour in just a few seconds?

The circular mezzanine on the second floor allows visitors to understand how survival strategies have evolved over millions of years. A series of small aquariums showcases organisms with remarkable adaptations.

Visitors can explore mechanisms such as:

  • camouflage, which allows certain animals to blend into their surroundings
  • symbiosis, cooperative relationships between species
  • physical adaptations, which enable them to survive in complex environaments

What do you know about the marine environment?

Among the aquariums, interactive games and information screens offer content related to ocean conservation, marine vertebrates, and their adaptation to aquatic environments.

This makes it an ideal educational space for a family activity in Barcelona.

Discover how to help save the oceans

Discover how to help save the oceans

 Camouflaged fish with marine adaptation
Exemples de camouflage et de survie en ecosystèmes marins.

Ocean Exploration and Marine Science

The oceans remain one of the least explored territories on the planet.

The exhibition “An Exploration in Progress” shows how technology has made it possible to descend into the deepest areas of the ocean.

One of the most remarkable achievements of modern exploration is the 2021 expedition of Spanish explorer Héctor Salvador, who descended to a depth of 10,706 metres in the Sirena Deep, located in the Mariana Trench.

He is currently Director of Operations for EMEA at Triton Submarines, based in Sant Cugat del Vallès. His work is opening new frontiers in deep-sea scientific exploration.

This area invites visitors to discover:

  • the history of underwater exploration
  • the engineering behind deep-sea submarines
  • oceanographic research instruments

Discover the story behind extreme engineering

An exhibition at Planeta Aqua exploring the history of ocean research
An experience to discover the engineering behind research submarines.

Interactive submarine


Children can enter the interactive submarine installation and experience how the inside of a scientific submarine works

Inside the Bathyscaphe interactive in aquarium Barcelona
Interactive installation simulating a scientific submarine.

Discover the mysteries of the oceans

Map of Planeta Aqua in Barcelona

Check the map to find your way around the exhibition hall and discover all the themed areas.

Pathway map of Planeta Aqua inside L’Aquàrium de Barcelona

An aquarium is a constantly evolving ecosystem

At L’Aquàrium de Barcelona, animal welfare and scientific research are top priorities. For this reason, during your visit, some of the species indicated may not be visible.

Discover all the creatures at L’Aquàrium

Check the map of the entire facility