About

Approx. 2hrs
Age 16+

Double the distance, double the challenge, Nuclear Fallout 12km is an endurance-packed obstacle challenge designed for seasoned and adventurous racers.

Covering rugged farmland, woodland, lakes, and muddy terrain, participants face over 70 natural and man-made obstacles that test strength, stamina, and determination.

Chip-timed, racers can tackle obstacles at their own pace, with no penalties for skipping them, ensuring the focus remains on personal achievement and fun.

Every finisher receives a medal, making this 12 km course a thrilling and rewarding adventure for those ready to push themselves further.

Book Tickets

Guide Prices

Ticket Type/Ticket Tariff
Ticket£79.00 per ticket

Note: Prices are a guide only and may change on a daily basis.

Book Tickets Online

Map & Directions

Road Directions

Ongar Road (opposite Secret Nuclear Bunker Site)

Public Transport Directions

Buses and taxis available from Brentwood & Shenfield stations.

Nuclear Fallout - 12K

Type:Children's Activity Event

Event Village, Ongar Road, Brentwood, Essex, CM15 0LA
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Call direct on:

Tel07970-739-037

Opening Times

Season (7 Nov 2026)
DayTimes
Saturday09:00 - 16:00

What's Nearby

  1. Micro Brewery based in Brentwood, Essex. We brew traditional and craft beers and offer…

    1.02 miles away
  2. Thorndon Country Park has 500 acres of tranquil woodlands and open park space perfect for…

    1.64 miles away
  3. Located close to the M25 and A12 in Essex, Weald Country Park is a 700 year-old, 500 acre…

    1.87 miles away
  4. An award winning Educational Farm Park in the Essex Countryside on the outskirts of east…

    2.95 miles away
  1. A weatherboarded post mill, restored to working order in 1983. See the huge wood and iron…

    3.52 miles away
  2. Step underground and into Cold War history at the Kelvedon Hatch Secret Nuclear Bunker,…

    4.25 miles away
  3. The Nature Discovery Centre is situated in 215 acres of historic parkland. Walk, explore…

    4.74 miles away
  4. Whether it’s a pre-show dinner, a post-theatre drink, a lunch break, or a special…

    5.13 miles away
  5. Our aim is to educate, enjoy and preserve the history and community of the Epping Ongar…

    6.77 miles away
  6. The oldest wooden church in the world, dating from the 11th century. Picturesque building…

    6.84 miles away
  7. Woodland, open grassland and lakes suitable for walking, picnics and fishing. Visitor…

    7.12 miles away
  8. A medium-sized brick tower mill, c.1816. It has four patent sails, a fantail and three…

    7.15 miles away
  9. Hylands Estate includes the fascinating & beautifully restored country house, stables and…

    8.63 miles away
  10. Go Ape Chelmsford is the latest to join Essex's top visitor attractions and comes…

    8.73 miles away
  11. Set in a spectacular position over looking Warren Gorge. Chafford Gorges nature park…

    8.81 miles away
  12. A history of the Essex Fire Service with items from the 18th century to today including…

    8.82 miles away
  13. Extreme indoor trampoline park at Lakeside Shopping centre. Family fun for all ages with…

    9.02 miles away
  14. At All Things Alpaca, visitors are able to trek around the stunning orchards at Lathcoats…

    9.78 miles away
  15. Museum of Chelmsford will take you through Chelmsford's history, from the Ice Age, right…

    9.99 miles away
  16. A beautiful town centre park leading into Tower Gardens and West Park, Admirals is one of…

    10.53 miles away
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