The Tunnel Marathon - Portsmouth

The Tunnel Marathon, set to take place at the UCAP Bunker near Portsmouth, is the UK's first fully underground marathon. Scheduled for November 30, 2024, this unique event will feature a course that includes several tunnels, some requiring participants to stoop due to height restrictions. The UCAP Bunker, located 100 feet underground, has historical significance as a former Royal Navy headquarters during D-Day.

Participants are required to wear headtorches and cycle helmets for safety. The event is organized under ARC Running Club rules, and no refunds or transfers are permitted for entries. Visit the organization's website for the most recent information.