Open Oceans Aquarium Tunnel
What is the Aquarium Tunnel?
Step into one of the UK’s most immersive aquarium tunnel experiences inside the spectacular Open Oceans tank at SEA LIFE® London. This breath-taking walk-through tunnel, filled with 750,000 litres of tropical seawater, surrounds you with the wonders of the deep in an unforgettable underwater journey.
Glide beneath the aquarium’s sharks, elegant rays, majestic green sea turtles, and vibrant tropical fish—all just inches away—inside our fully enclosed ocean tunnel aquarium. Whether you're a family planning fun and educational things to do in London with kids or a visitor seeking a unique rainy day activity in London, this magical marine experience is not to be missed.
Book now
What to Expect Inside the Tunnel
Walk through a fully enclosed glass tunnel 5 metres below the aquarium’s surface
- Feel immersed in a marine world with panoramic underwater views
- Ideal for photography and quiet observation
- A must-do for marine lovers and families alike
*Please note: Due to the aquarium tunnel’s popularity, short waits may occur during peak hours.
What Marine Life Can You See?
There is hundreds of unique tropical sea creatures living in our open oceans habitat! Keep your eyes out for our favourite species:
Fan-Favourites:
- Zebra Shark
- Green Sea Turtle
- Cownose Ray
- White-spotted Pufferfish
- Ocellated Eagle Ray
- Orbicular Batfish
- Cleaner Wrasse
More Colourful Tropical Fish:
- Blue Tang
- Harlequin Wrasse
- Clown Triggerfish
- Bignose Unicornfish
- Threadfin Butterflyfish
- Humpback Snapper
Can you spot them all during your underwater journey?
Why It's a Must-See in London
A one-of-a-kind walk-through tunnel in the heart of London
- A family-friendly experience that is the ideal rainy day activity in London
- Located in Central London, just steps from the London Eye, it's easy to visit both in one day. Check out our multi-attraction tickets for the best value.
- Offers immersive fun and education for all ages—from toddlers to teens and adults
Don’t miss London’s most jaw-dropping underwater experience.
Book below to guarantee entry
Online from
£31
Per adult
On the day
£39
Per adult
Animal Crossing Event Ends 27 July
- Entry at your chosen 15-minute time slot
- Discover species from around the world in 14 themed zones and interact with them at our public feeding, diving displays and touch pools
- Animal Crossing: New Horizons event is included with all SEA LIFE London entry tickets - just book any day from 30 June - 27 July
Online from
£36
Per adult
On the day
£44
Per adult
- Enjoy the freedom to arrive at any time on the day of your choice - no rush, just adventure at your own pace!
- Animal Crossing: New Horizons event is included with all SEA LIFE London entry tickets - just book any day from 30 June - 27 July
Online from
£32
Per adult
On the day
£43
Per adult
- Standard entry at your chosen time slot
- Includes an immersive VR experience: Dive into the ocean's depths with this cutting-edge virtual reality adventure
Who you'll meet here...
Zebra Shark
Don’t let the name fool you—these sharks are born with stripes that turn into spots as they grow! Calm and slow-moving, they often rest quietly on the seabed.
Find out more
Southern Stingrays
These smooth gliders flap like underwater birds! With their wing-like fins and gentle movement, they’re raysing the bar on elegance in the ocean.
Find out more
White-spotted Pufferfish
This quirky little swimmer may look cute, but it’s full of surprises! When startled, it inflates like a balloon - one of the ocean’s most unique defense moves.
Green sea turtles
Majestic and ancient, these slow-moving swimmers are a fan favourite. Keep an eye out as they cruise overhead—they’re the real shell-ebrities of the aquarium tunnel!
Find out moreFAQs
Most guests spend around 10–15 minutes exploring the tunnel, but you're welcome to stay longer and take it all in at your own pace. For a more relaxed experience, consider visiting during off-peak hours. Be sure to check our talks and feeding times so you don’t miss any highlights.
Yes! Photography is allowed, but please turn off flash to avoid disturbing our marine residents.
The aquarium tunnel is open all day, during normal attraction opening hours. See full opening hours here.
Yes! The ocean tunnel is perfect for kids and adults of all ages! It’s a great way to get a better look at the ocean and its creatures!
The ocean tunnel is fully accessible to all guests. Here at SEA LIFE® London Aquarium, we welcome all and strive to make our attraction as accessible as possible to all of our guests.
For the full accessibility guide click here.
