33 km trail runner wearing sunglasses

33 KM

UTMB Index 20K
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Race detailsRegistration 2027

The race

/ 33 KM
Trail runner's gear laid flat: vest, map, poles, shoes and bib
UTMB Index 20K
HydrationRouteGearTrainingRace bib

The Ria 33, an escape blending nature and effort. An adventure that will leave you wanting to go ever further!

The 33 km takes you through the Ria d'Étel's most iconic landscapes, alternating between technical trails and breathtaking scenery.

Registration 2027
Date
October 16, 2027
Distance
33 km
Location
Sainte-Hélène
Start time
10 am
Time limit
6 hours
Bib pickup
Friday, October 15Saturday, October 16
UTMB Index
UTMB Index 20K

The route

Download the GPXRegistration 2027

Environment

Aerial view of the Ria d'Étel and its sandbar

An exceptional
natural heritage

  • Natura 2000
  • ZNIEFF
  • Protected sites

The Ria d'Étel

is one of Brittany's natural jewels. This former river valley flooded by the sea is home to remarkable biodiversity: migratory birds, fish, shellfish and unique flora.

Our commitments

Get race ready

Runners mid-race

Get ready
for your trail!

Whether you're aiming to finish your trail or chase a personal best, here's all the advice you need to be at your peak on race day. We also offer a personal coach!

Stay ready!

Train now!

Locoal festif

Festivities in the Locoal-Mendon village

Locoal
festif

Locoal-Mendon

The nerve centre, designed as a place of exchange and conviviality for all participants.

RefreshmentsFirst aid
The village

Our other races

The full loop
80
KM
The loop in pairs
REL
AIS
Race detailsRegistration 2027

Our partners

DecathlonOfficial
KinetikPrivilege
UTMB IndexMajor
PlancoëtMajor
Our partners