For this 51st edition, the event has been extended to three days and offers a wide range of races, from school-age to university level, including the InterSport trail runs (5, 10 and 15 km), the Pichet Trophy cross-country race for all ages featuring hills and obstacles, Run and Bike (12.8 km) and Cani Cross (5.8 km), not to mention the 22 km \u2018Course nature entre Terre et Mer\u2019 for solo, duo or trio teams.
\nA friendly, multi-generational atmosphere centred on sport and community spirit, supported by volunteers and public and private partners.
\nAn eco-friendly approach.<\/p>\n
50 races over 3 days
\nProgramme, rules and registration at cross-sud-ouest.fr\t<\/p>\n
Register in advance online
\nUntil Wednesday 26 November 2025<\/p>\n
Get involved locally
\nNo later than 1 hour before the start of the race at the race number collection point<\/p>\n
COBAS Challenge
\nSunday 30 November at 12 noon<\/p>\n
Race Between Land and Sea
\nSaturday 29 November at 12.05 pm<\/p>","protected":false},"featured_media":243680,"template":"","villea":[2177],"cat-event":[2193],"class_list":["post-181355","agenda","type-agenda","status-publish","has-post-thumbnail","hentry","villea-gujan-mestras","cat-event-sports-et-loisirs"],"acf":[],"uagb_featured_image_src":{"full":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877.jpg",1200,800,false],"thumbnail":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877-150x150.jpg",150,150,true],"medium":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877-600x400.jpg",600,400,true],"medium_large":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877-768x512.jpg",768,512,true],"large":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877-1024x683.jpg",1024,683,true],"1536x1536":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877.jpg",1200,800,false],"2048x2048":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877.jpg",1200,800,false],"trp-custom-language-flag":["https:\/\/bassin-arcachon.com\/wp-content\/uploads\/2026\/04\/sirtaqui-eda905b1a4983e7c0e7fbc0c8ed0d877-18x12.jpg",18,12,true]},"uagb_author_info":{"display_name":"","author_link":"https:\/\/bassin-arcachon.com\/en\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"Pour cette 51e \u00e9dition, l\u2019\u00e9v\u00e9nement passe \u00e0 trois jours et propose une large palette d\u2019\u00e9preuves, du niveau scolaire au niveau universitaire, trail InterSport (5, 10 et 15 km), cross pour […]","_links":{"self":[{"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/agenda\/181355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/agenda"}],"about":[{"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/types\/agenda"}],"version-history":[{"count":1,"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/agenda\/181355\/revisions"}],"predecessor-version":[{"id":181461,"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/agenda\/181355\/revisions\/181461"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/media\/243680"}],"wp:attachment":[{"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/media?parent=181355"}],"wp:term":[{"taxonomy":"villea","embeddable":true,"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/villea?post=181355"},{"taxonomy":"cat-event","embeddable":true,"href":"https:\/\/bassin-arcachon.com\/en\/wp-json\/wp\/v2\/cat-event?post=181355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}