Several hiking trails between Hornburg and Osterwieck open up a mosaic of biotopes, from species-rich forests to semi-arid grasslands where Adonis roses bloom in spring. The quarry near Hoppenstedt with its mighty reddish and white sloping limestone layers is a natural monument and a particularly valuable geotope.
A tour through Hornburg's listed old town centre leads to numerous buildings and streets from 5 centuries that are well worth seeing. Over 30 objects from the "Garden of the Senses" are included in this tour of the town.
Geological points of interest are the gravel pit on the Klapperberg near Isingerode (with sand martin colonies), a peat cutting in the Großer Bruch as well as a spring pond, a former travertine quarry and several sinkholes near Steinmühle.
Directions: From Braunschweig travelling south on the A 395 to the Schladen-Nord exit. Through Schladen on the B 82 to Hornburg. Follow the signs.