Lac d'Ilay - 4 Things to Know Before Visiting

The Hedgehog is a river in the Jura massif, in France, in the French Jura Lakes Region and a tributary of the Ain, therefore a sub-tributary of the Rhône. The stream then joins the lower valley, jumping nearly 300 meters of vertical drop over 3 kilometers, constituting the Hérisson 2 waterfalls. Various belvederes and a walking path allow you to follow the successive falls.

The Jura Mountains are a sub-alpine mountain range a short distance north of the Western Alps and mainly demarcate a long part of the French-Swiss border. The mountain range gives its name to the French department of Jura, the Swiss Canton of Jura, the Jurassic period of the geologic timescale, and the Montes Jura of the Moon.

The Grande Traversée du Jura is a 400-kilometer long-distance hiking trail in the Jura. The path runs from Mandeure in a south-westerly direction. However, there are several variants, and some of the routes also lead to neighboring Switzerland. The trail was opened in 2003 and is not considered to be particularly technically demanding. The infrastructure includes several shelters and the option of being accompanied by donkeys as pack animals.

This superb natural lake of glacial origin is fed by the Lac de Narlay and flows into the River Ain via the Bief d'OEuf. It is the most beautiful and impressive of all the Jura's lakes. It has also been the focus of national archaeological interest since digs in 1904 brought to light lakeside pile dwellings at the site. One of the nice locations for a picnic and also trekking is possible in these surroundings.

The Risoux forms a wooded mountain range in the Jura, which extends in a south-west-north-east direction according to the general course of the folded Jura in this area. The border between France and Switzerland runs over the ridge. One of the nice trekking destinations and also a nice area for a short picnic.

Lac des Rousses is a lake in Les Rousses. The lake drains through the Orbe into Lac de Joux. The lake of Les Rousses is surrounded by bogs which give the site a remarkable biological value. You can also discover the typical flora and fauna of the Haut-Jura peat bogs by walking a thematic trail along the lake. One of the nice place to spend some free time and you can enjoy the natural beauty of this area.