The GR3 long-distance trail, alongside the Loire châteaux
The GR3 path follows the untamed course of the Loire for almost 1,250 kilometres, from its source in Mont Gerbier-de-Jonc to the river mouth in La Baule.
In Touraine, the trail passes nearby the great Loire Valley châteaux, like the royal fortress of Chinon, Azay-le-Rideau, Villandry, Amboise and Clos-Lucé, among others. It also goes through Tours, the vineyards and regional nature park of Loire-Anjou-Touraine.
On the IGN (Institut national de l’information géographique et forestière) online shop, you can buy the GR3 map.