19th February 2020

An exciting new exhibit named Changing Seas has opened at The Deep in Hull this week, featuring amazing new species including Red lionfish, Yellow dog faced pufferfish, Leopard moral eels and soft corals.

An exciting new exhibit named Changing Seas has opened at The Deep in Hull this week, featuring amazing new species including Red lionfish, Yellow dog faced pufferfish, Leopard moral eels and soft corals.

This exhibit however, has a very important message and aims to informing visitors about how climate change is affecting our oceans and what this means for the animals who live there.

The display was designed and executed in-house by our talented team of Aquarists, and took almost a year from concept to completion. The team paired with Dr Christina Roggatz, a research fellow working within the Energy & Environment Institute at Hull University, following her recent research study into this field. 

Dr Roggatz’ work focuses on how the ocean pH is dropping due to increasing carbon dioxide levels in the atmosphere and how this can affect marine organisms. It explores the impact increased ocean acidity can have on the every-day life of marine crustaceans, such as shore crabs.

She also recently investigated how two of the most potent biotoxins in the oceans are affected by climate change and showed that they will become more toxic by the year 2100.

Dr Roggatz said: “This display is the culmination of around a year of collaboration between the university and The Deep.

“The purpose of the display is to inform people about the impact of climate change on our oceans, by providing new facts people did not know before. They will definitely learn something new, because the effects of pH on smell molecules and biotoxins have only recently been uncovered.

“The molecule models were calculated on the University’s supercomputer VIPER. They make the influence of climate change very visible which now form an integral part of the new exhibit. They show the impact of climate change at a very different level to what people usually get to see and know.

Dr Roggatz continues: “It is a great honour to have my work go on display at The Deep.”

Ben Jones, Curator at The Deep said: “This exhibit tells a really important story and is designed to help our visitors understand the threats to our oceans.

 “Throughout history, small changes in water chemistry have taken millions of years, giving animals plenty of time to adapt. However the rate of ocean acidification is now faster than ever. pH change is an invisible danger, quietly changing our seas with potentially disastrous consequences.

“By the year 2100, the pH of the ocean is estimated to fall from 8.1 to 7.7. This small change of 0.4pH will mean the seas are 4 times more acidic causing huge problems for marine life. We hope by showcasing this issue within our exhibit, we can inspire our visitors to make a difference and help protect the oceans from further damage.”



19th February 2020

We are working in partnership with Swansea University and Project Seagrass on the ‘Seagrass Ocean Rescue’ project. 

The aim is to conserve and restore seagrass meadows around the British coastline. As well as contributing to the educational aspect of the project, The Deep will be sending two members of the aquarist team who will be heavily involved in the seagrass meadow restoration. Including fieldwork such as seed collection dives, seagrass planting dives, and survey work.

Did you know?

  • 50 species of fish live in or visit UK seagrass, supporting 30 times more animals than nearby habitat.
  • Seagrass restoration is vital to protecting UK coastlines and help to fight climate change as seagrass stores carbon 35 times faster than forests.
  • Seagrass is vital to the health of the ocean, as much as 92% of the UK’s seagrass has been lost
  • 20% of the world’s biggest fisheries are supported by seagrass meadows as fish nurseries.

This project supports research led by Swansea University, it is hoped that the partnership will inspire future major projects in other areas to restore the UK’s seagrass meadows to help support our climate, our fisheries, and our coastal livelihoods. The project is supported by Sky Ocean Rescue, WWF, Cardiff University, Swansea University, and Pembrokeshire Coastal Forum.



20th January 2020

Explore the exciting new Changing Seas exhibit and learn all about how climate change is affecting our oceans and what this means for the animals who live there. Find out what happens when the PH of the water changes and the why the animals struggle to communicate, find food, find a mate or detect predators.

Did you know? By 2100, the PH in the oceans is expected to fall from 8.1 to 7.7. This means the toxicity of the ocean would increase by 4 times.... having drastic effects on the animals. Find out more in this brand new display.

Look out for amazing new toxic species including Red lionfish, Dog faced pufferfish and Leopard moray eels. Did you know, the Red Lionfish delivers venom by up to 18 needle-like dorsal fins when under threat from predators and Yellow dogfaced pufferfish is laced with a toxin called tetrodotoxin. This is 1,200 times more poisonous than cyanide! They can also inflate their bodies to twice the size to warn off predators. 



7th January 2020

As you journey around The Deep, look out for the glass doors and take a peek behind the scenes. GLIMPSE gives our visitors the opportunity to view 8 working areas not usually on public show and investigate the inner workings of The Deep, see what it really takes to operate a public aquarium.

Did you know that we process over 40 million litres of water each day using specialised filtration equipment? Find out more about the inner workings of an aquarium through our 8 GLIMPSE exhibits:

  • 3rd floor, before the entrance turnstile – Take a sneak-peak behind the scenes where the divers kit up and enter the exhibits.
  • Introduction plant room, just after the turnstile – Learn how we ensure there is a good supply of oxygen through water movement, providing natural underwater habitat.
  • Discovery plant room at Discovery Corner – Discover how we maintain the perfect temperature for the amazing variety of species which live at The Deep.
  • Coral wall after the Lagoon - Keeping coral healthy can be rather tricky. Find out how we create the perfect conditions for our live coral to stay strong and grow.
  • Frog quarantine in Cool Seas – Take a look at how we culture food for our frogs as well as the Diver Entry Point for our ‘shop’ exhibit, which is only big enough for one diver.
  • Jellyfish culturing in Cool Seas – Learn how we successfully breed jellyfish and culture a variety of plankton and algae onsite, getting the right level of nutrition at every stage of their lifecycle.
  • Endless Ocean plant room, just after the tunnel - Take a closer look at the different equipment needed to care for our animals on such a large scale.
  • Penguin plant room on the ground floor near the lifts - This whole plantroom is dedicated to our colony of Gentoo penguins, keeping their habitat at a cool 9⁰C – brrr! 

If you see an Aquarist at work behind the scenes, be sure to give them a wave!



9th December 2019

We were delighted to welcome not one, but two baby penguin chicks to the world this summer. The first was born in June and the second arrived almost exactly a month later.

Both chicks have been doing really well and have already established themselves in our colony of Gentoo penguins in the Kingdom of Ice area of The Deep. There was just one thing we all wanted to know – were they boys or girls?

We sent their feathers off to be DNA tested and we’re delighted to announce we have two boys! We decided to let our penguins help with the gender reveal by adding an enrichment activity into the colony. They're inquisitive by nature and were very interested what was under the melting ice, surrounded by pebbles. You can see the video by clicking here. 

Plan your visit

Opening Times

  • The Deep is open daily from 10am to 6pm (last entry is at 5pm).
  • Car parking is available at a cost of £3 for six hours. It can become full during school holidays – alternative car parks can be found here.

Ticket Prices

Type of ticket Online On the day
Adult £13.50 £15.00
Child (3 - 15) £10.57 £11.75
Under 3s/Essential carers FREE FREE
Student*/Senior (60+) £12.60 £14.00

* Students must provide a valid NUS card or proof of age is required for school/sixth form students

Enter your address to get directions

Getting Here

Please use Tower Street or HU9 1TU when using a Sat Nav – this will take you to nearest main road to The Deep.

Product Categories

Key Information Buy Tickets Our Ethos