Anglesey Sea Zoo - 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! Find fascinating creatures from around the coasts of the UK, such as octopus, lobsters, seahorses, conger eels and jellyfish! You’ll also learn about British marine habitats and the research and conservation work which is helping to save them.


We have strictly followed numerous government and industry specific guidelines to ensure the Anglesey Sea zoo is now accredited as ‘Good to go’ through Visit Britain. We are very much looking forward to welcoming visitors here once again!

We politely request that all our visitors assist us by following all COVID-19 safety guidelines themselves and that all adults take full responsibility for ensuring that all children in their care follow guidelines too.


We’ve had to make some important temporary changes to the function of our attraction to meet initial reopening guidelines.

We're working on a booking system but there is currently no need to prebook your visit. Tickets are available at the admissions. Please be ready to make on-site payments using a ‘contactless’ bank card, rather than cash, where possible. Visitor numbers are carefully monitored indoors and across the site to allow social distancing to be maintained and we recommend allowing a bit more time to get in and around the aquarium when you arrive.

The aquarium is marked with social distancing markers and has one-way access, and we also offer interactive open air and outdoor activities throughout the day. Our popular licensed Rockpool Café is serving take-out and visitors seated outside.

We’ve put a lot of extra measures in place in order to keep you, our staff and our community safe.

This is a learning curve for all of us so we are asking all our visitors for feedback or suggestions in these early stages of reopening and if you see any areas that you think we can improve on during your visit, as always, we would appreciate your feedback.



Donate to our emergency appeal HERE

Buy a season ticket HERE

Buy an animal adoption HERE

Buy gift vouchers HERE

Emergency collection


We have launched an emergency collection to help feed and care for our animals and continue essential maintenance of their life support systems during the COVID19 crisis. Find out more below!

Find out more



Find out more about our conservation projects - the Lobster hatchery, Seahorse Nursery and Crawfish Breeding Programme!

Find out more

  • Aquarium


    Quirky lumpsuckers, rare British long-snouted seahorses, and mesmerising Moon Jellyfish to name a few! Click here to find out more!

  • Annual passes

    Annual passes

    You can now buy annual passes online - valid for 1 year. Find out more

  • Animal adoptions

    Animal adoptions

    Our Sea Parent Adoptions are a great way to treat yourself or give a special gift to someone else! Find out more

  • Summer 2020 Seashore Safaris

    Summer 2020 Seashore Safaris

    Book your place on a free socially distanced rockpool rummage on the beach outside the Sea Zoo! One of our expert biologists will join you and offer fascinating information on the creatures you find!

  • Diary


    Click here for news from our Aquarium Diary!

  • Rockpool Café

    Rockpool Café

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

  • 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! Find out more

  • Superb Gift Shop

    Superb Gift Shop

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

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

  • Site facilities

    Site facilities

    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. Free parking and disabled parking spaces! More about our site facilities

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)

Opening times

We are open every day including school holidays and bank holidays.

Opening times: 10am - 4.45pm (last entry), site closes at 6pm.

Last entry time may change so please check before visiting us.

Children under the age of 14 must be supervised by an adult in the aquarium and outside.

For more details please contact us.


Standard entry ticket

Children under 3 years oldFree
(Age 3-15. Children under the age of 14 must be accompanied by an adult both in the aquarium and outside.)
(Age 16 and older)
(Age 60+)
Students and concessions£7.7

Family tickets

1 Adult & 1 Child£15.1
1 Adult & 2 Children£22.15
1 Adult & 3 Children£29.3
2 Adults & 1 Child£23.2
2 Adults & 2 Children£30.15
2 Adults & 3 Children£37.25

Season tickets

Children under 3 years oldFree
(Age 3+)
(Age 16+)
(Age 60+)
Students and Concessions£25.4
1 Adult & 1 Child£49.6
1 Adult & 2 Children£73
1 Adult & 3 Children£87
2 Adults & 1 Child£75
2 Adults & 2 Children£90.5
2 Adults & 3 Children£104

Group rates (10+ visitors, valid 1 day)

Children under 3 years oldFree
(Age 3+)
(Age 16+)
(Age 60+)