Altriman is a mountain triathlon event set in the Pyrenees, built around endurance, nature and personal achievement. Its philosophy is less about racing against others and more about testing individual limits on demanding courses in a distinctive mountain environment. The event embraces the raw spirit of triathlon, with mass-start swims, challenging cycling routes and the effort of earning a finish across varied terrain.

Altriman offers four race formats: Full (XXL), Half (L), Olympic (M) and Sprint (S), giving athletes several ways to take on the challenge. The programme also includes practical resources such as race roadbooks, GPX route files, frequently asked questions, photos and videos. Official event photography includes images searchable by race number, with finisher photos from the Full and Half available to download.

Alongside race information and registration, Altriman supports spectators and volunteers with guidance on attending and opportunities to help with welcome services, aid stations, course operations and logistics. Its community-centered event is sustained by volunteers and celebrates the landscapes, effort and shared experience of mountain triathlon.