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The Big One

Choose from multi award winning 7km or 12km course distances over obstacle-loaded, muddy farmland set in the heart of the Secret Bunker Estate, Essex.

Nuclear is well known for delivering UK’s most award winning events with big, high quality, achievable, natural & man-made obstacles designed to test every ability of fitness on fast-paced courses over epic varied terrain. Expect the infamous Deathslides, Para-plunge zip-lines & new Swing A Ding obstacles at the lake zone plus loads of other obstacles.