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Ruta de las Fortalezas — 53K

The Navy's iconic 53 km, 1,631 m D+ march-race linking the 18th-century fortresses, coastal batteries and castles that ring Cartagena's bay, run by 5,000 people chosen by lottery. The 15th edition was on 18 April 2026 with a 17 km option; pre-registration opens in mid-January for the next April edition.

See how this race fits your training, the course profile and who else is going.

Registration on the organiser's site: rutadelasfortalezas.es