Updated for September 2026
The Best Aquariums in continental Portugal
How this list is ordered: by how complete our listing is — how much we hold on opening hours, ticket prices, accreditation, photographs, animals and facilities. It is a measure of our own coverage, not a judgement of the venue. We hold no visitor scores or conservation assessments, so “best” here means every aquarium in continental Portugal that qualifies for the list, fullest entry first.
Listed alphabetically
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Oceanário de Lisboa
Aquarium in Lisboa
It opened in May 1998 as part of the Expo 98 world's fair, built on the site of the former Cabo Ruivo seaplane harbour, and ranks as the second-largest facility of its kind on the Iberian Peninsula. The complex covers 20,000 square metres and holds roughly 7.5 million litres of water across more than thirty tanks, housing around 8,000 animals from 500 species, spanning birds and mammals alongside fish and other marine life. At its centre sits a five-million-litre tank built around a Global Ocean theme, holding sharks, barracudas, rays and tuna, surrounded by four smaller habitats representing the North Atlantic, Antarctic, temperate Pacific and tropical Indian Ocean.
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On-site diningDisability admission concession
FLUVIÁRIO DE MORA
Aquarium in Cabeção
FLUVIÁRIO DE MORA is an aquarium in Portugal. Animals on show include lontras-europeias, lontras-de-garras-curtas and saramugo.
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Aquário Vasco da Gama
Aquarium in Oeiras
A public aquarium, it belongs to the Navy's cultural commission as one of its cultural venues and stands in Dafundo, in the parish of Cruz Quebrada-Dafundo.
More in continental Portugal
View all continental Portugal listingsOur ranking methodology
This is not a ranking. The 3 venues above are listed alphabetically by name, the same order used throughout this site. We do not collect visitor reviews, star ratings, ticket-sales figures or a conservation-impact score, so none of those exist here to rank by — “best” in this page’s title means every venue that qualifies for this list, not first-to-last by quality. If we ever add a data source robust enough to support an honest ranking, this note and the order above will change together.