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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

Map Link

Click here to view map

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

Website

Call direct on:

Tel07970-739-037

Opening Times

Season (7 Nov 2026)
Day	Times
Saturday	09:00	- 16:00

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