Friesen walks

Friesen boasts an exceptional array of half-timbered houses built between 1499 and 1876. Thanks to meticulous inventory work, the walk allows you to see many reminders of a rural world that disappeared forever after the Second World War. A country lane then leads to the Notre-Dame de Grünenwald chapel and Ueberstrass, following in the footsteps of the Knights of Malta.

Speaking of this part of the Sundgau, André Gide wrote:"One is constantly surprised, as one crosses the forest, to find oneself in the presence of an unsuspected sheet of water, mysteriously asleep in the shelter of the beech forests; rushes adorn narrow sandy beaches at the edge of large fields of water lilies. There are also several reminders of the First World War and the front line that separated Largitzen from Bisel.

Hirtzbach is well worth a visit. The castle, English park and opulent residences of Unterdorf are neatly lined up on either side of the stream, whose banks are beautifully flowered in summer. Along the way, a rural and wooded detour leads to the site of the vanished village of Sankt-Glückern and the Landfürstenweyer, the Princes' Pond, with its still waters.

Kilometre Zero is the starting point of the front line established during theFirst World War. It is located on the current French-Swiss border, at a place called Le Largin. The Kilometre Zero trail explores three sections of the front line, the first kilometres of the French and German fronts, and the Swiss front at Le Largin, established along the border opposite the no man's land where boundary marker No. 111, considered the zero point of the Great War front line, is located.

Climb up to Roc au Corbeau, which straddles the French-Swiss border.

The landscapes you pass through here are among the most beautiful in the Sundgau region. The rock shelter of Mannlefelsen, a major Mesolithic site in Alsace, precedes the Ebourbettes, which tell the story of General Giraud's escape in 1942. Further on, the ruins of Morimont offer an interesting history lesson on how a medieval castle was adapted to firearms.

The fighting of the First World War raged in the Sundgau region from August 1914 onwards. The French blew up the Dannemarie viaduct and the front stabilised and extended from the Vosges to the Swiss border. The front line ran a few kilometres from Illfurth, near Heidwiller. During this tour, you will discover several bunkers that served a variety of purposes, including ammunition depots, observation posts and artillery emplacements, as well as several casemates.

A beautiful hike to discover Ferrette, a beautiful medieval town with its castle and the Grotte des Nains (Dwarves' Cave) with its famous legend known to everyone in Alsace.

This second stage begins in France and rejoins the Jura trail at the Ébourbettes farm. You will walk along a border path and, at Roc au Corbeau, enjoy a view of Alsace. Until Vendlincourt, you will walk through alternating pastures and wooded areas. Before arriving in Porrentruy, you will enjoy an open-air exhibition of wooden animal sculptures. Don't miss a visit to the historic town of Porrentruy and its castle.

Along this trail of bunkers, explore fortifications dating back to the First World War, built by the German army. After the fighting in the summer and autumn of 1914, the Haute-Alsace front stabilised on along the line of Cernay-Dannemarie. The commune of Burnhaupt-le-Bas remains on the German side. In December 1914 and January 1915, the French offensive in this sector regularly broke the German lines at the cost of many lives.

During this third stage, you will cross the historic town of Porrentruy. As you leave the town, the path runs along the edge of the woods before starting the climb to the Chalet des Chainions (Chalet des Amis de la Nature). The route then continues along a ridge before descending towards the hamlet of Seleute. As you approach Saint-Ursanne, you can admire the Clos du Doubs and its rocky massifs. You will enter the historic town of Saint-Ursanne through the Porte Saint-Paul.

This family hike takes you to the majestic Gros Chêne de Sondersdorf. Entirely in the forest, it passes through the Raedersdorf Discovery Trail, decorated with around fifty (or more) wooden sculptures and dotted with educational panels that are sure to interest children. Best done in dry weather in any season.If you only want to do the discovery trail and see the sculptures, see Practical Information.

A circular walk around Michelbach dam with views over the Swiss Alps and 'Le Grand Ballon d'Alsace' on a clear day. Perfect spot for wildlife spotting. Along the way there are many signs giving some information about what to see and the history.

During this fourth stage, you will walk along the banks of the Doubs to Tariche. You will cross the Doubs on a self-service boat. Then you will follow a ridge overlooking the Delémont valley and the Doubs. You will take the very pleasant Combe du Bé to reach Glovelier.

This hike takes you mainly through forest from Sentheim to Masevaux via the Wolflenloch discovery trail. The return route follows the Doller river, passing the Hohenstein Cave and Sainte-Anne Chapel.