Fundraise with Nuclear Essex
Charities
If you are a charitable organisation or wish to fundraise for a good cause, we can work together to create a successful unique event so you can focus on reaching your charity and fundraising target.
Year-Round Bespoke Charity Experiences
Looking for a memorable way to raise funds or engage supporters? Our year-round venues offer the perfect backdrop for creative, meaningful charity events — with full facilities and flexible options to suit every group.
Nuclear Wild Forest: An exciting outdoor obstacle venue set in Essex woodland, ideal for sponsored challenges, school fundraisers, and community events that get everyone moving.
Nuclear Adventures: Take your fundraising to new heights with climbing, zip lines, and outdoor challenges that build confidence and connection. Perfect for groups, friends, and corporate fundraisers alike.
Secret Nuclear Bunker: Host your event underground at our iconic Cold War site, complete with a conference room for hire, catering options, and an unforgettable atmosphere. It’s perfect for awareness days, charity presentations, or themed events that stand out from the crowd.
All our sites are equipped with essentials — toilets, free parking, and indoor/outdoor spaces — making it easy to focus on your cause while we take care of the practicalities. Our team will help you design and deliver a bespoke fundraising experience, handling logistics, safety, and coordination so your day runs seamlessly.
Planning a corporate fundraising event or charity challenge for your team? Visit our corporate page for more information.
Charity Race Events & Fundraising Challenges
If your supporters are ready to get muddy, climb high, and go all in for a cause, our award-winning races are the perfect platform. Every year, thousands of people take part in our iconic obstacle races and outdoor fitness challenges, raising funds and awareness for amazing charities.
Nuclear Races: Our legendary obstacle events — packed with mud, obstacles, laughter, and teamwork. Perfect for charity teams, corporate fundraisers, and individuals taking on a personal challenge.
Nuclear Fit: High-energy outdoor fitness races where every rep, sprint, and carry goes towards making a difference.
Nuclear Mud Tribe: A low pressure obstacle race that brings adults and kids together for fun, fitness, and fundraising — no experience needed, just enthusiasm!
We offer group discounts and support to help you get the most from your event — from promotion and participation to post-race celebrations.
Planning a group or team fundraiser? Visit our group discount page for more information.
A great afternoon and evening was had by all of our party; something for everyone !
Seemed to be a mix of adult, children and family/ groups, therefore, a nice balance. We were with some friends and their children who had a session on the ropes/ Zip wires etc. Also did some air gun shooting which was a new experience for most of the group and was thoroughly enjoyed. There was a warm welcome here and the staff seemed to be enthusiastic and safety conscious. A lovely setting next the the secret nuclear bunker and the experience exceeded expectations. We will be back; our friends will be re visiting too – I’m sure.
Martin Rigden
Gold Geese loves Wild forest mud runs!!!
Sam especially is really amazing, she makes the whole experience every year!
Super happy to be return customers yearly! Thanks for always accommodating our charity.
Katie Southgate
A bonzer big up to Sam (and the team) at Nuclear Wild Forest for being the hostess with the mostest and making it a morning to truly remember!
Our 50 strong team of muddy ducks ran, swam, climbed, clambered, rolled, pulled, slid, bounced and welly wangled their way around the Wild Forest obstacles and raised lots of lovely lolly for our chosen charity, the awesome, Aoifé’s Bubbles!
We can totally recommend the whole experience – it was the best fun, we literally belly laughed our way round the course and have already planned our return visit!
Finthephoenix
What a Weekend with Body Fresh Fitness! Last weekend was one to remember! I took on Nuclear Races RUSH on Saturday, 10th May, followed by Nuclear Fit on Sunday, 11th May, alongside an incredible crew from my gym, Body Fresh Fitness. The whole experience was absolutely amazing, full of fun, energy, and yes… totally knackering! But what a blast it was!
I also asked one of our inspiring members, Debbie Cole, to share a few words about her experience on Saturday, especially since she was the oldest in our group, and she absolutely smashed it. Here’s what she had to say:
“What an unforgettable day at the Nuclear Races Rush on Saturday with Body Fresh Fitness! At 61, this was my first time tackling a Nuclear Race, and it exceeded all expectations. The energy was incredible, and the companionship was even better. It wasn’t just about our team—the support from everyone out on the course was truly inspiring. Although I skipped a few obstacles near the end, I pushed far beyond my comfort zone and had an amazing time. The event was exceptionally well organised from start to finish. I’m already looking forward to the next one, those missed obstacles won’t beat themselves!”
Sara Martin
Our Brands
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.
Fundraising Momentum
The fun, viral-ready nature of all activities, creates exciting content that is easy to share and encourages maximum sponsor donations from both your followers and those of your fundraisers.
Unforgettable Team-Building:
The wide range of courses and challenges are perfect for corporate partners or large groups, strengthening team bonds while hitting high fundraising totals.
Accessible for All Levels
With offerings for kids (Rookies), families, different race distances, and other activities, every fundraiser, regardless of fitness or comfort level, can find an empowering way to champion your cause.
