Sea Life

SEA LIFE Porto is located beside Castelo do Queijo, between the City Park and the sea. It is an aquarium dedicated to discovering marine life, environmental education and conservation, bringing together more than 3,000 creatures in different habitats. The route passes through areas such as Rivers and Streams, Rock Pools, Sunken Ship, Kingdom of Salacia, Ocean Cave, Seahorse Temple and Ray Bay. Among its inhabitants are seahorses, jellyfish, sharks, octopuses, penguins, rays and the turtle Mariza. One of its most striking features is the underwater tunnel, presented by the aquarium itself as the only one in the country. The space also includes a Coral Nursery, described as the first national project for breeding threatened corals for the worldwide SEA LIFE network. Between tanks, filtered light and the constant movement of water, the museum brings science, biodiversity and ocean awareness closer together.

Why it matters

SEA LIFE opened its doors on 15 June 2009 and quickly became a prominent feature of Porto's cultural and educational landscape. Operated by the British group Merlin Entertainments, it remains the only SEA LIFE aquarium in Portugal. Its mission has always been to raise awareness of marine conservation through a combination of education, entertainment, and scientific engagement. In its first year alone, the aquarium welcomed around 400,000 visitors, revealing a widespread public fascination with the underwater world. Over the years, SEA LIFE has expanded its facilities and exhibitions. In 2019, to mark its 10th anniversary, it unveiled a new exhibit area: Penguin Harbour. This space became home to a group of Humboldt penguins, an endangered species, transferred from SEA LIFE’s breeding programmes. This initiative strengthened the aquarium’s role in supporting biodiversity and global conservation efforts.

Architecture and history

SEA LIFE was designed to offer an immersive and engaging visitor experience, combining indoor spaces with outdoor areas that blend naturally with the surrounding City Park. The main building spans around 2,400 square metres, and with the recent expansions, the exhibition area now covers over 5,000 square metres. The standout architectural feature is the underwater tunnel, the only one of its kind in Portugal. This transparent corridor is enclosed by a 500,000-litre tank, allowing visitors to walk beneath sharks, rays, and other marine creatures, offering a stunning and close-up perspective of ocean life. The layout ensures a smooth visitor flow while preserving the aquarium's immersive and educational ambiance.

More context

A visit to SEA LIFE is a journey through aquatic ecosystems from freshwater environments like rivers and lakes to coastal and deep-sea habitats. The underwater tunnel is an unmissable highlight, offering a 360-degree view of marine life, where visitors can closely admire the grace of rays and the power of sharks. Another captivating section is Penguin Harbour, where Humboldt penguins can be observed up close in a carefully controlled environment that simulates their natural habitat. This space not only delights visitors but also reinforces the importance of wildlife conservation. To enhance the interactive experience, there are touch pools that allow especially younger visitors to engage directly with marine creatures such as starfish and sea urchins. These encounters are accompanied by informative talks that deepen visitors' understanding of marine biology. SEA LIFE also hosts regular feeding demonstrations, educational talks, and awareness campaigns, establishing itself as a venue where leisure and environmental education come together in a compelling and memorable way.