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

The Deep is open daily from 9am – 6pm (last entry 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.

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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

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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.

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