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, cuttlefish 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

From Monday February 26th until the Easter holidays, the opening times are:

Mon-Fri 10am-3.45pm (last entry), cafe opens at 9.30am with hot food served until 3pm.

Sat & Sun 10am-4.45pm (last entry), cafe opens at 9.30am with hot food served until 4pm.

SPECIAL OFFER! Due to the major renovations on two of our largest tanks, we're doing a special offer this spring... If you visit us before the end of March 2018, be sure to hold on to your ticket as it'll entitle you to a 25% discount on another visit before the end of April 2018! We're expecting our spiny lobster tank and conger eel tank to be fully back up and running by then so you can come see them with their usual residents! Just be sure to bring your original ticket in before 1/5/2018 to claim your discount!

During quieter periods such as between February half term and Easter we may close earlier, so we recommend phoning in advance to check the opening times if you're visiting outside school holidays and planning to come late in the day.

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£7.70

Family tickets

1 Adult & 1 Child£15.10
1 Adult & 2 Children£22.15
1 Adult & 3 Children£29.30
2 Adults & 1 Child£23.20
2 Adults & 2 Children£30.15
2 Adults & 3 Children£37.25

Season tickets

(Age 3+)
(Age 16+)
(Age 60+)
Students and Concessions£25.40
1 Adult & 1 Child£49.60
1 Adult & 2 Children£73.00
1 Adult & 3 Children£87.00
2 Adults & 1 Child£75.00
2 Adults & 2 Children£90.50
2 Adults & 3 Children£104.00

Group rates (10+ visitors, valid 1 day)

(Age 3-15)