www.cosathletisme.fr

Kal'Onna Trail

location_on

Chalonnes-sur-Loire, Pays de la Loire, France

calendar_today 05 Apr, 2026

directions_run Running

sell €13.00 – €30.00

About the Event

Uncover the etymological roots of the Loire Valley at the Kal Onna Trail, set to return for its 12th edition on Sunday, April 5, 2026. Organized by the Chalonnes Olympique Sports (COS) Athlétisme, the race derives its unique name from pre-Indo-European terms: "KAL," meaning stone or shelter, and "ONNA," meaning water. Together, they reflect the ancient meaning of Chalonnes-sur-Loire: "the house near the water." This event is a poetic invitation to explore the rugged beauty of the Anjou region, leading approximately 1,450 participants through a landscape where steep hillsides meet the flowing currents of the Loire River.

The 2026 edition serves as the prestigious opening stage of the Challenge Trails Anjou Logémaine, a series of eight races held throughout the department between April and October. Starting from the Gaston Bernier stadium, runners will navigate a diverse course spanning four communes: Chalonnes-sur-Loire, Saint-Laurent-de-la-Plaine, La Jumellière, and Chaudefonds-sur-Layon. While the organizers playfully warn that your calves may "sting" due to the technical climbs, the atmosphere remains festive and communal. Whether you are a marathon-distance expert or a newcomer to nature racing, the Kal Onna Trail offers a perfect blend of athletic challenge and scenic discovery in one of France’s most historic river landscapes.

Race Category	Distance	Terrain Highlights
Grand Trail	42 km	Technical ridges and extensive riverside paths.
Medium Trail	20 km	Rolling hills and scenic viewpoints over the Loire.
Discovery Trail	10 km	Accessible nature paths for beginners and families.
Total Expected Runners	1,450 Participants	Open to all levels.

Demographic Metric	Regional Statistics (Chalonnes-sur-Loire, Maine-et-Loire)
Total Population (Chalonnes)	Approx. 6,500 Residents
Department Population	Approx. 815,000 (Maine-et-Loire)
Median Age	41 Years
Key Local Industry	Viticulture (Coteaux-du-Layon) & Tourism

Races Offered

Trail 42 km

Apr 05, 2026

straighten

Distance — 42K

terrain

Type — Running

timer

06:30

sell

€30.00

Trail 20 km

Apr 05, 2026

straighten

Distance — 20K

terrain

Type — Running

timer

09:00

sell

€20.00

Trail 10 km

Apr 05, 2026

straighten

Distance — 10K

terrain

Type — Running

timer

09:30

sell

€13.00

Weather Overview

These values represent the 3-year monthly averages for April in Chalonnes-sur-Loire.

Temp (°C)

Feels Like (°C)

thermostat 7.1° / 15.9°

wb_sunny 3.9° / 12.5°

Wind (km/h)

Humidity (%)

air 13.7 /

water_drop 77.5%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 7.1° / 15.9°

wb_sunny 3.9° / 12.5°

air 13.7 km/h

water_drop 77.5%

About Chalonnes-sur-Loire

Learn more about the host city, Chalonnes-sur-Loire.

Chalonnes-sur-Loire is a commune in the Maine-et-Loire department in western France. It is located on the left bank of the river Loire in the Loire Valley UNESCO World Heritage Site area.