The Best of British Marine Life at Anglesey’s leading all weather family attraction

Anglesey Sea Zoo is a unique aquarium with over 40 tanks displaying the best of British marine wildlife! Don’t expect to see large sharks, tropical fish or sea turtles – instead you’ll find fascinating creatures from around the coasts of the UK, such as octopus, lobsters, seahorses, conger eels and small British catsharks! You’ll also learn about British marine habitats and the research and conservation work which is helping to save them.


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Ever wondered what lurks in the seas around the coast of Wales and Britain?

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Conservation is increasingly the most important aspect of the work of any aquarium

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  • Highlights


    Quirky lumpsuckers, extremely rare British spiny seahorses, and mesmerising Moon Jellyfish!

  • Talks and feeding displays

    Talks and feeding displays

    Expert Marine Biologists, feeding displays, interactive sessions and so much more!

  • Rockpool Café

    Rockpool Café

    Enjoy delicious home cooked cakes, snacks, meals and daily specials all made from the best locally sourced produce!

  • Pick your very own pearl!

    Pick your very own pearl!

    Watch while your oyster is opened and your pearl is cleaned, valued and even set in jewellery. A unique gift for you or someone special

  • Superb Gift Shop

    Superb Gift Shop

    Well stocked with a huge range of gifts, souvenirs, toys, confectionary and local produce, we guarantee there’s something for everyone!

    Non aquarium visitors are always welcome in our cafe and gift shop.

  • Outdoor fun

    Outdoor fun

    Have fun outside on the huge Bouncy Castle and slide, the Pirate’s Playground, Captain Jake’s Crazy Golf, Gator Swamp Boats and the Cannon Blaster. Enjoy breathtaking shoreline views of Snowdonia with picnic tables and Anglesey ice cream. 

All standard and family tickets are valid for 6 days after day of purchase so you can see your fishy friends and marine mates again for free in the week following your first visit! A great deal for families! (Not transferable, Terms & Conditions apply)

Featured video by Gweledigaeth

Opening times

We are closing for winter maintenance on Dec 4th 2017 and will reopen for the new season on Feb 10th 2018.

We are open during the 2017 season from February half term (local) until December the 3rd.

During the winter months we are open for group bookings.

For more details please contact us.


Standard entry ticket

(Age 3+)
(Age 16+)
(Age 60+)
Students and concessions£7.40

Family tickets

1 Adult & 1 Child£14.50
1 Adult & 2 Children£21.25
1 Adult & 3 Children£27.95
2 Adults & 1 Child£22.25
2 Adults & 2 Children£28.95
2 Adults & 3 Children£35.75

Season tickets

(Age 3+)
(Age 16+)
(Age 60+)
Students and Concessions£24.45
1 Adult & 1 Child£47.75
1 Adult & 2 Children£70.25
1 Adult & 3 Children£83.75
2 Adults & 1 Child£72.25
2 Adults & 2 Children£87.25
2 Adults & 3 Children£99.75

Group rates (10+ visitors, valid 1 day)

(Age 3-15)