Tough Mudder UK — London South 2026

Tough Mudder is the world's biggest obstacle course challenge — a 10-mile course with 25+ obstacles designed to test teamwork, strength, and nerve. The London South event is held at a country estate with mud pits, cargo nets, ice baths, electric shocks, half-pipe walls, and the terrifying Everest 2.0 quarter-pipe. The emphasis is on teamwork rather than competition — there are no individual timings, and the whole point is to help strangers over walls, through tunnels, and across obstacles. The atmosphere is supportive and often hilarious — watching people attempt the obstacles is as entertaining as doing them yourself. You will get extremely muddy, wet, and cold. Tough Mudder events run across multiple UK locations throughout the year. The classic 10-mile course is the flagship, but there are also half-distance and 5K options. Train in advance — it's demanding. Bring a complete change of clothes and a bin bag for the car seat home. Spectating is free and entertaining.