Tough Mudder London South, Holmbush Estate, Crawley Road, Faygate, West Sussex, RH12 4SE.
The closest stations are Three Bridges and Crawley.
From London:
By car 75 mins | By train 53 mins
From Birmingham:
By car 3 hours | By train 3 hours
From Southampton:
By car 90 mins | By train 2 hours
From Bristol:
By car 195 mins | By train 3 hours