{"id":7369,"date":"2026-05-26T12:19:54","date_gmt":"2026-05-26T12:19:54","guid":{"rendered":"https:\/\/www.mer-et-ocean.org\/index.php\/2026\/05\/26\/defi-mediterraneen-traversee-calvi-nice-nage\/"},"modified":"2026-05-26T12:22:08","modified_gmt":"2026-05-26T12:22:08","slug":"defi-mediterraneen-traversee-calvi-nice-nage","status":"publish","type":"post","link":"https:\/\/www.mer-et-ocean.org\/index.php\/2026\/05\/26\/defi-mediterraneen-traversee-calvi-nice-nage\/","title":{"rendered":"Le D\u00e9fi M\u00e9diterran\u00e9en : Traverser la M\u00e9diterran\u00e9e \u00e0 la Nage, de Calvi \u00e0 Nice \u2014 Premi\u00e8re Mondiale"},"content":{"rendered":"\n<p class=\"intro-article wp-block-paragraph\">Et si traverser la M\u00e9diterran\u00e9e \u00e0 la nage devenait le symbole le plus puissant pour alerter le monde sur l&rsquo;urgence de prot\u00e9ger nos mers ? C&rsquo;est exactement ce que <strong>Gilles Rondy<\/strong> s&rsquo;appr\u00eate \u00e0 r\u00e9aliser : relier <strong>Calvi (Corse) \u00e0 Nice \u00e0 la nage<\/strong>, soit pr\u00e8s de <strong>180 kilom\u00e8tres en nage continue<\/strong>, sans combinaison, sans assistance physique \u2014 une <strong>premi\u00e8re mondiale absolue<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Le D\u00e9fi : Calvi \u2192 Nice, 180 km \u00e0 la nage<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La distance \u00e0 vol d&rsquo;oiseau entre Calvi et Nice est de 160 km. Mais les courants m\u00e9diterran\u00e9ens porteront la distance r\u00e9elle autour de <strong>180 km<\/strong>. Le temps de nage est estim\u00e9 entre <strong>60 et 120 heures<\/strong> \u2014 soit entre 2,5 et 5 jours de nage ininterrompue, sans jamais monter \u00e0 bord du bateau d&rsquo;accompagnement.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-0e47273b wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-background-background-color has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"border-radius:8px;padding-top:24px;padding-right:24px;padding-bottom:24px;padding-left:24px\">\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.354), 18px);\">\u26a1 Les chiffres du d\u00e9fi<\/h3>\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udccd <strong>~180 km<\/strong> Calvi \u2192 Nice<\/li>\n<li>\u23f1\ufe0f <strong>60 \u00e0 120 heures<\/strong> de nage continue<\/li>\n<li>\ud83e\ude71 <strong>Maillot de bain uniquement<\/strong> \u2014 z\u00e9ro combinaison<\/li>\n<li>\ud83d\udeab <strong>Z\u00e9ro assistance physique<\/strong><\/li>\n<li>\ud83d\udce1 <strong>GPS + cardio en direct<\/strong> \u2014 100% transparent<\/li>\n<li>\ud83c\udf0a <strong>Vitesse cible : ~3 km\/h<\/strong> \u2014 objectif tr\u00e8s ambitieux<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-background-background-color has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"border-radius:8px;padding-top:24px;padding-right:24px;padding-bottom:24px;padding-left:24px\">\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.354), 18px);\">\ud83c\udfc5 Pourquoi c&rsquo;est une premi\u00e8re mondiale<\/h3>\n\n\n<p class=\"wp-block-paragraph\">D&rsquo;autres nageurs ont travers\u00e9 la M\u00e9diterran\u00e9e, mais jamais dans ces conditions simultan\u00e9es :<\/p>\n\n\n<ul class=\"wp-block-list\">\n<li>Sans combinaison thermique<\/li>\n<li>Sans contact physique avec le bateau<\/li>\n<li>Avec retour au point GPS exact en cas d&rsquo;urgence m\u00e9dicale<\/li>\n<li>Film\u00e9 en continu pour une transparence totale<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi la M\u00e9diterran\u00e9e ? Un message environnemental urgent<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ce d\u00e9fi n&rsquo;est pas qu&rsquo;une performance sportive. Il est porteur d&rsquo;un message scientifiquement document\u00e9 et terriblement actuel.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Une mer qui se r\u00e9chauffe \u00e0 toute vitesse<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La M\u00e9diterran\u00e9e se r\u00e9chauffe <strong>20 % plus vite que la moyenne mondiale<\/strong>. Lors des vagues de chaleur marines r\u00e9centes, ses eaux ont atteint <strong>29 \u00b0C<\/strong> \u2014 bouleversant les \u00e9cosyst\u00e8mes, la faune et la flore qui s&rsquo;y sont d\u00e9velopp\u00e9s depuis des mill\u00e9naires. Des esp\u00e8ces migrent, d&rsquo;autres disparaissent. Les coraux blanchissent. La posidonie recule.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">La pollution plastique : une catastrophe silencieuse<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chaque ann\u00e9e, <strong>8 millions de tonnes de plastiques<\/strong> sont rejet\u00e9es dans l&rsquo;oc\u00e9an mondial. La M\u00e9diterran\u00e9e, mer semi-ferm\u00e9e, en concentre une part disproportionn\u00e9e. R\u00e9sultat : jusqu&rsquo;\u00e0 <strong>60 % des poissons consomm\u00e9s peuvent contenir des microplastiques<\/strong>. Ce que nous rejetons en mer, nous le mangeons.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>\u00ab Traverser la M\u00e9diterran\u00e9e, c&rsquo;est porter un message fort : l&rsquo;urgence de prot\u00e9ger les milieux marins. Un exploit individuel au service d&rsquo;une cause collective. \u00bb<\/em><\/p>\n<cite>\u2014 Gilles Rondy<\/cite>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">La pr\u00e9paration : une progression m\u00e9thodique vers l&rsquo;impossible<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gilles Rondy n&rsquo;a pas d\u00e9cid\u00e9 du jour au lendemain de traverser la M\u00e9diterran\u00e9e. Chaque d\u00e9fi pr\u00e9c\u00e9dent a \u00e9t\u00e9 une \u00e9tape de pr\u00e9paration, une validation physiologique et mentale :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83c\udf0a <a href=\"\/index.php\/traversee-la-manche-leverest-de-la-natationtrversee\/\"><strong>La Manche<\/strong><\/a> \u2014 34 km, eaux \u00e0 16 \u00b0C, trafic maritime intense. Record de France.<\/li>\n<li>\ud83c\udf2c\ufe0f <a href=\"\/index.php\/ouessant-continent-le-bapteme-du-froid-en-terre-bretonne\/\"><strong>Ouessant \u2013 Continent<\/strong><\/a> \u2014 30 km dans le Fromveur, l&rsquo;un des courants les plus violents d&rsquo;Europe.<\/li>\n<li>\ud83c\udf34 <a href=\"\/index.php\/sainte-lucie-martinique\/\"><strong>Sainte-Lucie \u2013 Martinique<\/strong><\/a> \u2014 40 km en conditions tropicales, houle et courants du canal des Saintes.<\/li>\n<li>\ud83c\udfdd\ufe0f <a href=\"\/index.php\/live\/\"><strong>Martinique 80 km<\/strong><\/a> \u2014 La Trinit\u00e9 \u2192 Fort-de-France en <strong>22 heures de nage continue<\/strong>, mai 2026. Le test grandeur nature d\u00e9cisif.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">La travers\u00e9e de Martinique (80 km, 22h) a valid\u00e9 la capacit\u00e9 de Gilles \u00e0 nager plus d&rsquo;une journ\u00e9e compl\u00e8te sans interruption. Elle a \u00e9t\u00e9 <strong>couverte mondialement<\/strong> : Le Parisien, Ouest-France, Martinique 1\u00e8re, Le T\u00e9l\u00e9gramme, et la presse internationale (Roumanie, \u2026).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gilles Rondy : l&rsquo;homme derri\u00e8re le d\u00e9fi<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e9 en Bretagne, install\u00e9 au Pays Basque, <strong>Gilles Rondy<\/strong> a construit une carri\u00e8re d&rsquo;exception dans la natation en eau libre :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83e\udd47 <strong>Champion d&rsquo;Europe 2006<\/strong> sur 25 km \u2014 l&rsquo;\u00e9preuve la plus longue et la plus exigeante du circuit international<\/li>\n<li>\ud83c\udfc5 <strong>Jeux Olympiques de P\u00e9kin 2008<\/strong> \u2014 repr\u00e9sentant de l&rsquo;\u00e9quipe de France<\/li>\n<li>\ud83c\udf0a Recordman de France de la travers\u00e9e de la Manche \u00e0 la nage<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mais ce qui distingue Gilles des autres athl\u00e8tes, c&rsquo;est sa philosophie : chaque travers\u00e9e est un <em>dialogue avec la mer<\/em>, une qu\u00eate d&rsquo;authenticit\u00e9, et surtout un <strong>vecteur de sensibilisation<\/strong> pour les g\u00e9n\u00e9rations qui ne voient plus l&rsquo;oc\u00e9an que depuis les plages.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment soutenir le D\u00e9fi M\u00e9diterran\u00e9en ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ce projet d&rsquo;envergure repr\u00e9sente un budget total de <strong>65 000 \u20ac<\/strong> \u2014 logistique maritime, s\u00e9curit\u00e9, captation vid\u00e9o en direct, \u00e9quipements m\u00e9dicaux embarqu\u00e9s. L&rsquo;association D\u00e9fi, Nage, Mer et Oc\u00e9an est une <strong>association loi 1901<\/strong> : vos dons sont d\u00e9ductibles \u00e0 <strong>66 % de vos imp\u00f4ts<\/strong>. Les exc\u00e9dents sont revers\u00e9s \u00e0 une association environnementale.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Faire un don<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chaque contribution, m\u00eame modeste, participe directement au financement de la travers\u00e9e et \u00e0 la diffusion du message environnemental.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-background-color has-background wp-element-button\" href=\"https:\/\/www.helloasso.com\/associations\/defi-nage-mer-et-ocean\/formulaires\/1\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"border-radius:0px;font-weight:600\">\u2764\ufe0f Soutenir le projet sur HelloAsso<\/a><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Devenir partenaire<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;association propose trois formules de partenariat :<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-0e47273b wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"border-color:#18b4aa;border-style:solid;border-width:2px;border-radius:8px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<p class=\"wp-block-paragraph\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.177), 16px);font-weight:700\">\u2b50 Partenaire Premium<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>&gt; 6 000 \u20ac<\/strong><\/p>\n\n\n<ul class=\"wp-block-list\" style=\"font-size:14px\">\n<li>Visibilit\u00e9 maximale (bateau, bonnet, combinaison\u2026)<\/li>\n<li>Logo sur tous les supports de communication<\/li>\n<li>Mention prioritaire dans tous les m\u00e9dias<\/li>\n<li>Conf\u00e9rence exclusive avant\/apr\u00e8s<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"border-color:#dddddd;border-style:solid;border-width:1px;border-radius:8px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<p class=\"wp-block-paragraph\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.177), 16px);font-weight:700\">\ud83e\udd1d Partenaire Officiel<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>Sur devis<\/strong><\/p>\n\n\n<ul class=\"wp-block-list\" style=\"font-size:14px\">\n<li>Visibilit\u00e9 sur les supports majeurs<\/li>\n<li>Pr\u00e9sence dans toutes les communications<\/li>\n<li>Visioconf\u00e9rence avant et apr\u00e8s la travers\u00e9e<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"border-color:#dddddd;border-style:solid;border-width:1px;border-radius:8px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<p class=\"wp-block-paragraph\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.177), 16px);font-weight:700\">\ud83d\udd27 Partenaire Technique<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>Apport en nature<\/strong><\/p>\n\n\n<ul class=\"wp-block-list\" style=\"font-size:14px\">\n<li>Fourniture d&rsquo;\u00e9quipements ou de services<\/li>\n<li>Logo sur tous les supports majeurs<\/li>\n<li>Visibilit\u00e9 adapt\u00e9e \u00e0 l&rsquo;apport<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Pour toute demande de partenariat : <a href=\"\/index.php\/contact\/\"><strong>contactez directement l&rsquo;association<\/strong><\/a> ou \u00e9crivez \u00e0 <a href=\"mailto:gilles@mer-et-ocean.org\">gilles@mer-et-ocean.org<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Suivez la pr\u00e9paration et ne manquez pas le jour J sur la <a href=\"\/index.php\/live\/\">page Live<\/a>. Ensemble, faisons de cette travers\u00e9e un symbole d&rsquo;engagement et de responsabilit\u00e9 pour la M\u00e9diterran\u00e9e.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gilles Rondy s&rsquo;appr\u00eate \u00e0 traverser la M\u00e9diterran\u00e9e \u00e0 la nage : ~180 km de Calvi \u00e0 Nice, 60 \u00e0 120 heures de nage continue, sans combinaison ni assistance physique. Une premi\u00e8re mondiale au service de la protection de la M\u00e9diterran\u00e9e.<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47,46],"tags":[],"class_list":["post-7369","post","type-post","status-publish","format-standard","hentry","category-defi-mediterraneen","category-traversees"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le D\u00e9fi M\u00e9diterran\u00e9en : Traverser la M\u00e9diterran\u00e9e \u00e0 la Nage, de Calvi \u00e0 Nice \u2014 Premi\u00e8re Mondiale - D\u00e9fi, Nage, Mer et Oc\u00e9an<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mer-et-ocean.org\/index.php\/2026\/05\/26\/defi-mediterraneen-traversee-calvi-nice-nage\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le D\u00e9fi M\u00e9diterran\u00e9en : Traverser la M\u00e9diterran\u00e9e \u00e0 la Nage, de Calvi \u00e0 Nice \u2014 Premi\u00e8re Mondiale - D\u00e9fi, Nage, Mer et Oc\u00e9an\" \/>\n<meta property=\"og:description\" content=\"Gilles Rondy s&#039;appr\u00eate \u00e0 traverser la M\u00e9diterran\u00e9e \u00e0 la nage : ~180 km de Calvi \u00e0 Nice, 60 \u00e0 120 heures de nage continue, sans combinaison ni assistance physique. 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