We host a multitude of experiences here at The Angelsey Sea Zoo… ranging from daily activities to special events throughout the year!







Anglesey Sea Zoo has around 40 tanks with amazing marine wildlife found in our own native British seas! Take a look at what you might find in the various rooms on your way around the aquarium! (Please note that although we try to keep this information up to date, we sometimes have to move animals around at short notice.) If you can’t find a certain animal or display, please don’t hesitate to ask a member of staff!
Our Front Room shows you what’s hiding under piers and harbours in the Pier Tank, with large flatfish camouflaging themselves against the bottom and swift grey mullet zooming around. Keep an eye out for the colourful cuckoo wrasse!
The cold-water tank is the lair of the Spotted wolffish peering at passers-by from among the rocks – although grumpy-looking with large fangs, they are actually fairly docile creatures. The large open tank is home to our adult spiny lobsters – learn about their life cycle and our breeding project!
A tonne of water is dumped down in this tank every 30 seconds or so! Don’t worry, you won’t get splashed!
No bones here! Discover incredible invertebrates like starfish, anemones, sea urchins, octopus and the mesmerising moon jellyfish! Did you know starfish have an eye at the end of each arm?
This is the home of many of our juvenile animals as well as some very strange creatures – you might spot young hermit crabs, baby fish, pipefish (relatives of seahorses!) or the visitor favourite, the Common cuttlefish! You’ll also learn about marine litter, conservation and Marine Protected Areas!
The dark and spooky wreck of the Seven Sisters is home to common shipwreck residents – the conger eels! Spot huge starfish, the spiny spider crabs, the cheeky tompot blennies and the quirky lumpsuckers, and discover the stories of wrecks in North Wales and artifacts found in them!
Conservation in action! Female European lobsters in the hatchery carry eggs under their tails until they hatch. Learn about the lobster life cycle and check out the adorable tiny baby lobsters who’ll eventually be released back into the sea to boost the local population!
One of the visitor favourites, our seahorse exhibit is home to both species of British seahorse – the short-snouted seahorse (Hippocampus hippocampus) and the long-snouted seahorse (Hippocampus guttulatus.)
Learn all about the extraordinary lifestyle and reproduction of these amazing but vulnerable creatures, and the threats they face in the wild. If you’re lucky, you might even see a pregnant male during the spring/summer breeding season (yes, the males give birth!)
Another big splash! Stay back or stand closer if you’re brave! The wave stirs the water for the stinging Snakelocks anemones and provides plenty of oxygen at the same time. Find the bright blue lobster hiding in its rocky lair – did you know the colour is found in only 1 out of 2 million European lobsters?
Learn about British sharks and rays! Don’t expect to see large grey predators with huge teeth – sharks come in many different shapes and sizes! Our smallspotted catsharks and nursehounds are small bottom-dwelling nocturnal predators, so keep your eyes peeled and look underneath the grids under your feet as you make your way round, and you might spot an oblivious shark fast asleep. Our pool is also home to 3 species of British skates – thornback ray, small eyed ray and blonde ray. They are masters of camouflage!
If you look in the nursery tanks by the pool during the breeding season, you’ll find baby sharks wriggling inside their eggcases, as well as new hatchlings! Basking sharks are far too big for tanks, but our model basking shark is hard to miss – would you believe they grow even larger?
Our largest tank has a kelp forest full of big fish. Take a seat and watch the hypnotic group of silvery sea bass and gilthead bream, find the orange and green ballan wrasse (did you know they change from female to male?), and spot the large spider crabs climbing the rock walls and hiding in caves. You can also take a closer look at our thornback rays, and you might even see their alien-like underside…
Creatures you might find on the beach! Learn about life in rock pools, rocky shore zones and see if you can find the little blennies hiding among the colourful beadlet anemones!

The talks by our expert biologists are an opportunity to learn more about British marine wildlife! Talks take place at 11.30am, 1.30pm and 3.30pm. More about our talks



Our Sea Zoo Parent scheme makes a special gift for someone – or why not treat yourself? Click here for more info on our Animal Adoptions!

Our Junior Conservationist package includes working in the aquarium for a day, looking after the animals, feeds, tank maintenance and much more!
Also included is a goody bag, a Junior Conservationist t-shirt and other treats!
Email aquarium@angleseyseazoo.co.uk to book or ask any questions you have!


A practical educational package that enables the learners to be hands on during the learning process! A biologist will take the learners down to the Menai Strait at low tide to explore and identify animals along the shoreline. This is finished with a dip in the rock pools to see the varying life found between different ecosystems!
Safaris are usually 60 minutes including time for equipment organisation, and are weather dependent. It is advised that all attending this package bring their own wellies and waterproofs (although we do have a limited number of spare wellies should they be required). Nets, buckets, high visibility jackets and ID cards are provided.
Please note that availability depends on the tides. Times and availability may be limited during spring tides, but it’s ideal for school groups!
Price: £30; max. recommended group size 15
Depending on the time of year, we may do special shorter Seashore Safaris that are limited capacity, but FREE! Be sure to check out our social media during the season to find a list of our activities, and arrive earlier in the day to sign up!
