Summer at nuclear essex
Make This Summer Unforgettable
Make the most of summer at Nuclear Essex with outdoor activities, obstacle courses and family-friendly events in Essex. From water obstacles at Nuclear Wild Forest and high ropes at Nuclear Adventures, to outdoor fitness races, and the Secret Nuclear Bunker tour, there’s something for all ages and abilities. Whether you’re planning a family day out, school holiday activity or a group experience, you will be sure to make memories that will last.
Nuclear Adventures Summer pass
Why pay for just one day out when you can unlock a whole summer of adventure?
The Nuclear Adventures Summer Pass is the ultimate school holiday sanity saver for parents. Instead of wondering how to keep the kids entertained, active and off their screens, you can enjoy unlimited visits all summer long.
The best part? The pass pays for itself in just two visits!
Parents can relax while the children play, with easy supervision from our picnic area, free WiFi if you need to work remotely, complimentary tea and coffee, and dogs are welcome too, making it an easy, stress-free day out for the whole family.
What’s Included:
- Unlimited bookings for High Ropes, Zip Trek and Axe Throwing
- Access to our specialised Quiet Sessions
- Access to Little Monkeys sessions
- Free tea & coffee
- Free WiFi
- Dogs welcome
- Valid 7 days a week during the summer holidays
- Pays for itself after just two visits
15% off 2+ activities at nuclear adventures
Age 6+
2 Hours +
All abilities
July / August
Build a perfect day of adventures and combine two or more experiences in a single booking and enjoy 15% off your total.
Take on High Ropes, Zip Trek or Axe Throwing together as a family, or let the kids enjoy their action-packed day while parents watch from the picnic area with free Wi-Fi and complimentary tea and coffee.
Simply book two or more different activities together, and your 15% discount will be applied automatically.
Splash at nuclear wild forest
Age 6+
60 Minutes
All abilities
June / July / August
Make a splash this summer at our award-winning obstacle course.
Designed for ages 6+, Splash is all about fun, confidence and getting stuck in. From bouncing and climbing to splashing and sliding, children can explore the Lake Zone in a safe, exciting environment packed with energy and laughter.
Ready to take it up a level? Splash Plus is a more action-packed Lake Zone experience designed for ages 10+. Includes all Splash obstacles, plus the Deathslide, Kingfisher, Mutts Nutts Swingers and Spinning Monkeys.
Key information​
- Hot washdowns and changing rooms available.
- Hosted by friendly and qualified instructors.
- Buoyancy aids provided for all lake activities.
- Change of clothes and shoes, and a black sack for wet clothes.
Just Get Over it at Nuclear wild forest
Age 6+
Approx. 1.5 Hours
All abilities
July / August
90 minutes of action packed obstacle and muddy fun, led by designated, qualified & friendly instructors. Children will bounce, climb, crawl, jump and slide their way around the obstacle course, which is designed for all abilities, finishing with the ultimate highlight, our slip ‘n’ slide .
This session focuses on fun, movement and building confidence in a supportive environment.
In our experience, children benefit most from the session without parents on the course, which helps build independence. Parents are welcome to relax in the hub or take advantage of our drop-and-go option.
Key information​
- Achievement certificate for everyone.
- Hosted by highly experienced and qualified staff.
- Hot washdowns and changing rooms available.
Secret Nuclear Bunker Tour​
All Ages
Approx. 1 Hour
Take a step back in time to the Cold War era with a visit to the Kelvedon Hatch Secret Nuclear Bunker. This massive underground complex is the biggest and deepest Cold War bunker open to the public in the Southeast of England.
As a Regional Government Headquarters, the bunker would have housed hundreds of staff, including Prime Minister Margaret Thatcher. Our self guided audio bunker tour is a fascinating opportunity to explore this unique piece of history and discover the secrets that would have unfolded in the event of a nuclear war.
What’s Included
- Immersive Self guided tour with handsets.
- Discover real life artefacts from the Cold War period, and experience what life would have been like at the Essex Secret Bunker.
- Discover the authentic underground command centre – where real plans were made for life after a nuclear strike.
- Younger visitors can explore this unique era of our history through our engaging dressing up area.
Nuclear FIT Rookies
Age 9+
Approx. 1 Hour
18th July 2026
An exciting outdoor fitness race designed for young athletes aged 9–15, giving them the chance to take on a fun and challenging course built just for them. Combining functional fitness stations with short runs, the race introduces the next generation to fitness racing in an energetic, supportive and confidence-building environment.
What’s Included
- Chip timing.
- 1 free finishers wall photo.
- Finishers medal.
- Free spectators and free parking.
Funded holiday club
4 Hours
Activity
All Abilities
July / August
We’re delighted to be offering funded holiday club places through Essex ActivAte at Nuclear Adventures and Nuclear Wild Forest for eligible children with SEND.
If your child is eligible for the Holiday Activities and Food (HAF) programme, you can use your voucher code to book a fully funded place at one of our exciting outdoor holiday clubs. Children will enjoy action-packed activities, build confidence, make new friends and have fun in the fresh air.
To check your eligibility and find out more about the Essex ActivAte programme, please click the More Info button below. Once you have received your voucher code, simply return here to book your place.
We look forward to welcoming you for a fantastic summer of outdoor adventure!
Nuclear Offers
Explore all our activities...
Step out of the routine and into the thrill of award-winning obstacle course action at Nuclear Races.
Challenge yourself with Nuclear Fit, an outdoor fitness race that tests your strength, stamina, and determination.
Get muddy with Mud Tribe, a 5k obstacle course run which is suitable for all abilities.
Uncover Cold War secrets at the iconic Kelvedon Hatch Secret Nuclear Bunker.
Take adventure to new heights at Nuclear Adventures, featuring high ropes, zip lines and thrilling target sports.
Get outdoors and challenge yourself at Nuclear Wild Forest with thrilling obstacle courses and axe and knife throwing.
How to find us
Nuclear Essex is located in Brentwood, Essex just 15 minutes from the A12, M25 and M11.
By Train and taxi, we’re just 15 minutes from Brentwood station (on the mainline from Liverpool St) or 15 minutes from Epping Underground station.
