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Barcelona Aquarium | Leisure in Barcelona | Barcelona guide | Holiday to Barcelona | Best things to do in Barcelona
![Transparent Tunnel in Barcelona Aquarium in Barcelona, Spain Editorial Photo - Image of nature, spain: 99565691 Transparent Tunnel in Barcelona Aquarium in Barcelona, Spain Editorial Photo - Image of nature, spain: 99565691](https://thumbs.dreamstime.com/b/transparent-tunnel-barcelona-aquarium-barcelona-spain-barcelona-catalonia-spain-december-transparent-tunnel-barcelona-99565691.jpg)
Transparent Tunnel in Barcelona Aquarium in Barcelona, Spain Editorial Photo - Image of nature, spain: 99565691
![Visitors in underwater tunnel of Barcelona Aquarium, Port Vell harbor in Barcelona, Spain Stock Photo - Alamy Visitors in underwater tunnel of Barcelona Aquarium, Port Vell harbor in Barcelona, Spain Stock Photo - Alamy](https://c8.alamy.com/comp/FFJPJH/visitors-in-underwater-tunnel-of-barcelona-aquarium-port-vell-harbor-FFJPJH.jpg)
Visitors in underwater tunnel of Barcelona Aquarium, Port Vell harbor in Barcelona, Spain Stock Photo - Alamy
![Visitors in underwater tunnel of Barcelona Aquarium, Port Vell harbor in Barcelona, Spain Stock Photo - Alamy Visitors in underwater tunnel of Barcelona Aquarium, Port Vell harbor in Barcelona, Spain Stock Photo - Alamy](https://c8.alamy.com/comp/FFJRFP/visitors-in-underwater-tunnel-of-barcelona-aquarium-port-vell-harbor-FFJRFP.jpg)