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A spotted eagle ray gliding through deep blue water above a dim reef

Hall 03 The Open Ocean / opens 14 November

Stand beneaththe open ocean.

Our new main tank holds 4.2 million litres of filtered seawater behind a single acrylic wall. Walk the ramp down its flank and finish on the floor, looking up at the rays.

Sunlit coral reef with a scatter of small orange fish

02 The descent

Four halls,one continuous dive.

Brinehall is built as a ramp, not a maze. You enter at the waterline and lose light one hall at a time, from reef to the edge of the deep, roughly the way a diver would.

  1. 010–20 m

    Sunlit Reef

    Hard corals under full-spectrum light, every colony grown from fragments in our own nursery. Tangs, clownfish and a hawksbill called Bo.Enter hall
  2. 025–30 m

    Kelp Forest

    A seven-metre surge tank that moves the kelp the way a North Atlantic swell does: one long push every eleven seconds.Enter hall
  3. 030–200 m

    Open Ocean

    The main tank. Eagle rays, two loggerheads, a shoal of six hundred sardines, and a floor window you can lie under.Enter hall
  4. 04200–1 000 m

    Twilight Room

    Moon and comb jellies in circular kreisel tanks, lit at the low blue they would actually see four hundred metres down.Enter hall
Shafts of sunlight falling through clear blue water

03 How we keep them

We don’t take from the sea to fill a tank. Nine in ten of the animals you’ll meet here hatched in our nursery or arrived injured and stayed, and the rest are on a list to go home.

Dr. Maren Aalto — Head of husbandry
of residents bred in-house or taken in injured
92 %
animals collected from the wild since 2019
0
rehabilitated and returned to the sea last year
31
of acrylic between you and 4.2 million litres
38 cm
Looking up from a reef towards the sunlit surface, a shoal of small fish overhead

04 Visit

Plan thedescent.

Opening hours
Day entryDaily09:30 – 18:00
After DarkThu – Sat19:00 – 23:00
Members’ morningsSunday08:30 – 09:30
Last descentEvery day60 min before close
Ticket
Descent, Thu 14 Nov
Per person€24