Epic Last Hurrahs
Hen & Stag Parties
Before you say “I do,” come and see what we can do! Kick off the celebrations with a legendary Hen or Stag do at Nuclear Essex, where we trade wedding bells for mud-soaked obstacle courses and treetop High Ropes thrills. Whether you’re testing your aim with Axe Throwing or taking a literal leap of faith, our team handles all the planning, leaving you free to focus on the big day while we handle the big adventure.
Ultimate Stag and Hen Parties at Nuclear Essex
Skip the predictable pub crawl — your ultimate Hen, Stag or Sten adventure starts at Nuclear Essex! We deliver high-energy, laugh-out-loud experiences that guarantee the most memorable send-off before the big day. It’s all about teamwork, challenges, and getting gloriously muddy.
Take your pick: conquer the world-famous obstacles at Nuclear Wild Forest, take on the towering High Ropes Course at Nuclear Adventures, or get competitive with Axe and Knife Throwing — or mix it all for the ultimate experience!
Our team make planning easy, with experienced staff handling the fun (and chaos) so you can focus on celebrating. Groups of all sizes are welcome, with full facilities availableMake it an all-day event with food, drinks, and time around the Fire Pit — because nothing bonds a wedding party like shared mud, laughter, and adventure.
Nuclear Wild forest
Round up your squad for a full-on #LoveMud experience at Nuclear Wild Forest, where you’ll climb, crawl, and splash your way through our famous outdoor obstacle course. It’s the ultimate test of teamwork and fun — and you’ll definitely leave with memories (and probably mud) that last.
Our Hen & Stag Wild Forest sessions are led by qualified instructors and tailored to your group’s energy level, so everyone can get involved — no matter how competitive (or delicate) the group might be. You’ll tackle a mix of natural and man-made obstacles, with the option to finish on our legendary Deathslide into water or even add ziplines for extra thrills.
Afterwards, clean up in our indoor washdowns, grab a drink or some food in the heated party room, or relax around the fire pit to share the day’s best moments. It’s the perfect mix of mud, mischief and celebration.
Nuclear Adventures
For a hen or stag party that’s a little less muddy but every bit as thrilling, head to Nuclear Adventures. You’ll take on our High Ropes Course, soar through the trees on the Zip Trek, or unleash your inner Viking with a round of Axe Throwing — all under the guidance of our friendly instructors.
Our party packages are flexible and can be tailored to your group’s vibe — whether you want high-adrenaline adventure, a bit of friendly competition, or just an excuse to laugh together while facing your fears (and cheering each other on from below).
With catering options, a Party Den for celebrations, and full facilities including toilets, changing areas, and parking, your day will be seamless from start to finish — leaving you free to focus on having fun before the big day.
Go Big with a Nuclear Event!
Our large-scale Nuclear events are the ultimate way to bring your group together for mud, laughter, and unforgettable memories. Whether you want full-on adventure or just a brilliant day out with friends, these events combine fun, teamwork, and pure celebration from start to finish.
- Nuclear Races: Our legendary obstacle course races are packed with mud, water, and laughter — the perfect mix for a truly unforgettable send-off. Work together, get messy, and enjoy the buzz of crossing the finish line side by side. Events are held in May, September and November.
- Nuclear Fit: Get the group moving with this high-energy outdoor fitness race featuring six unique fitness stations. With plenty of encouragement (and a few laughs along the way), it’s a great way to bond before the big day. Events are held in May, July, and September.
We’ll help you plan the perfect experience with group packages that make everything easy and stress-free. Whether you’re celebrating friendship, letting loose before the big day, or just after a totally unique party idea, Nuclear Essex delivers an experience you’ll never forget.
The visit was informative, poignant, and thoughtfully organised.
I recently visited Kelvedon Hatch Secret Nuclear Bunker, and it was a truly moving and one-of-a-kind experience. The serene, rural setting creates an eerie yet captivating atmosphere that sets the tone from the start. The underground bunker itself, a three-storey Cold War installation built beneath a seemingly normal bungalow, is exceptionally well preserved. The handheld audio guides brought history to life, allowing us to feel what it was like to be one of the 600 personnel stationed here during a crisis. The self-guided tour is easy to follow, and the exhibits cover the site’s full history comprehensively. The bunker is a stark architectural marvel, set 125 ft underground, connected by a 100‑yard reinforced tunnel. Overall, the visit was informative, poignant, and thoughtfully organized. I highly recommend it to anyone interested in Cold War history or unique hidden landmarks.
Kevin White
Took our football teams along for our end of season event. The players all absolutely loved it and have asked to go again for pre season training – Sam and her team were so supportive and encouraging of the team and helped and pushed them to try all of the amazing obstacles. The Death slide is EPIC!
Neil Brooks – Stanway Rovers YFC
What a fabulous day! It went without a hitch and everyone had an incredible time! You and the team were amazing, your support and organisation all the way through has been top notch, from an events perspective I have not had to worry about a thing, you are a powerhouse lady! You take everything in your stride and you are on top of everything, it really has been a pleasure working with you on this, from start to finish! I think we are at about £3,400 total fundraising which is fab!
SNAP charity
Big Drop was a highlight
Took a stag party here and had a fantastic time. The high ropes were brilliant and the 50 foot drop in a harness was something I never thought I’d be able to do, but it was epic. Great course with multiple difficulty/height levels and some decent zip lines too. 10/10 would recommend for a few hours of fun. 
Ben – March 2026
Dave Testa
This is my 3rd Family Wave run at Nuclear Races and it is the best event!
The course is challenging but loads of fun, the whole event is brilliantly well organised and the marshals around the course are so supportive and encouraging giving you loads of confidence and making sure it is all super safe, particularly the water obstacles. It is a must in our family diary every year!
Sophie Mather
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.
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.
Uncover Cold War secrets at the iconic Kelvedon Hatch Secret Nuclear Bunker.
Ultimate Bonding Experience
Nothing breaks the ice and creates instant friendship like tackling the mud and obstacles together – perfect for mixing the two sides of the wedding party.
Viral-Ready Content
Generate hilarious, shareable photos and videos of the bride / groom-to-be on the famous Deathslide or covered in mud to fuel the wedding slideshow.
Hassle-Free Organising
Enjoy dedicated instructors, flexible packages, and great onsite facilities (hot wash downs, private spaces) for a smooth, high-impact day out.