Experience life in the cool seas, see creatures from our coastal waters and discover the mysteries of deep-water dwellers. The Cool Seas exhibition lets you explore the diversity of life living in cold water.

This exhibition looks at two different cool seas; the Northern seas which border the Polar Regions and the deep seas. At depths greater than 200 metres, life in the deep sea is comparatively barren with mysterious creatures adapting to this harsh environment.

The darker zone of Cool Seas draws you into the depths of the oceans where you can marvel at the bizarre species that call these cold waters home. From the ancient nautilus to the unusual ratfish, the sea stars to the mesmerising jellyfish, these waters are home to a wealth of life.

The depths of the oceans are a tough place to live, reaching temperatures of -50 ̊C at 1,000 metres and with pressure of over 100 times that at the surface. Without light at these depths, animals must develop unique methods to hunt. Use the stationed interactives to explore why animals use bioluminescence, from luring prey to communication, it’s up to you to figure out who does what, and why. Discover all about ocean currents and which species are under threat from over-fishing and pollution.

Protected by the angle of the Earth from the full power of the sun, and with more distinct seasons, these cool seas contain some of the largest, most productive eco-systems in the world. 

Back to The Deep Tour

Meet the Stars

Here you can see some of the stars of Cool Seas, so make sure to look out for them on your way round.

Wolf eel

The Wolf-eel gets its name from its fearsome looks and long eel like body. It is not an eel but a relative of deep-sea fishes, the eelpouts. Wolf eels live on their own or as a mated pair in rocky holes at depths down to about 200 metres.

Longspine snipefish

Adults swim above the sandy sea floor at depths down to about 600 metres. Young feed in surface waters on tiny drifting animals called zooplankton.

Ballan wrasse

Like all wrasse, Ballan wrasse are born female. As they develop the most dominant female turns in to a male and can be recognised by a change in colour and pattern. The male keeps a harem of females.

Spotted ratfish

Named for its rat-like tail, this Chimera is related to sharks and rays and has a skeleton made from cartilage instead of bone. It has a venomous spine at the front of its dorsal fin.

Moon Jellyfish

A translucent jellyfish that grows to between 25 and 40cm in diameter. It is commonly recognised by its four horse-shaped gonads. They are capable of only limited motion and drift with the current, even when swimming.

Plan your visit

Opening Times

  • Open daily from 10am until 6pm
  • Last admission is at 5pm, although we recommended you to arrive no later than 4pm
  • The Deep’s peak times are between 11am – 2pm, should you prefer a quieter environment please visit outside these times.
  • Car parking is available costing £3 for six hours. It can become full during school holidays. Alternative car parks can be found here

The Deep Tower Street, Hull, HU1 4DP

01482 381000 Any questions?

SAT NAV (HU9 1TU) this will take you to Tower Street, Hull, the nearest main road to The Deep.

Ticket Prices

Type of ticket Online On the day
Adult £12.60 £14.00
Child (aged 3 to 15) £9.90 £11.00
Children under 3 FREE FREE
Student* £11.70 £13.00
Senior (60+) £11.70 £13.00
Essential carer FREE FREE

* in full time education, valid NUS, University card or proof of age is required for school and Sixth form students.

Code of Conduct

Please click here to see The Deep's terms and conditions of entry

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Customer Safety

The Deep takes the safety and security of its staff and visitors seriously and continues to work with Counter Terrorism Police Officers to review security regimes on a regular basis.

The Deep reserves the right to carry out random bag searches at reception. To minimise delays, please avoid bringing large bags and rucksacks into the attraction.

More information can be found on how to play your part here https://www.gov.uk/government/publications/stay-safe-film https://www.mi5.gov.uk/what-you-can-do

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