The gardener started this garden in 1989 and since then continues to transform it, enrich it and carry out botanical experiments in it.
It is a 40-acre garden for strolling in that is both both structured and wild, abundant and full of crannies in which to relax in the middle of a wide variety of plants, trees, shrubs, perennials, roses, ferns, etc.
In the 19th century, Charles de Reinach laid out an English garden, to the right of Hirtzbach Castle, populated with beech, ash, pine and other more uncommon trees including an oak tree registered in the inventory of historical monuments. A stream and three ponds where swans and ducks frolic lend a pleasant touch of coolness.
Open to the public, there are several buildings to be explored including, to the left of the entrance, the last ice house in Sundgau, in which was stored ice cut from the frozen surface of the ponds.
Opposite the entrance of the park, on the island called St. Helena, there is a chalet in which wood is stocked. Beyond the ice house another chalet, on the right of the driveway, was used for drying planks while the one based on the model of the canton of Lucerne, at the end of the path, was used to stock hay.
The Sundgau House of Nature, built by the Porte d'Alsace combined municiple authorities, offers nature activities for all ages.
Activities not to be missed:
Throughout the year, the Sundgau House of Nature provides entertainment for young people and the general public:
It supports teachers in educational nature projects,It organizes youth training and ""nature"" work camps during the holidays,It also provides the general public with a programme of guided tours to encounter the natural heritage of Sundgau, practical ecology workshops, festive events, etc.
And in the summer?
The SHN offers guided tours to discover the natural heritage of the Sundgau area, special evenings and fun workshops for the family (the programme is available on the website). For those who prefer travelling around the Sundgau area autonomously, it also features walking routes departing from Altenach.
The more curious amongst you will also take the time to explore, on the site of our Altenach discovery trail, the little ""key to the soil"" gallery of geology and will spend a few moments in the Strange Grange, encountering an odd universe...
The Largue River rises in Oberlarg in Glaserberg at an altitude of 500 metres, near the Swiss border, and joins the Ill River on the heights of Illfurth having traveled 46 km. In the 19th century, it provided the energy for 53 mills in 34 villages.
A few metres away is the Mannlefelsen rock shelter where all the prehistory of the Alsatian Jura is concentrated in 8 metres of stratigraphy. Be aware that the site is private and is only visible from the path.