Haderslev tunnel valley
Discover the landscape around Haderslev Dam, shaped during the last Ice Age, with lakes, hills, forests and a large deer park. Explore on foot or by bike, or board the electric boat Dorothea in central Haderslev for a round trip on the lake.

4 Marked Hiking Routes in Tunnel Valley
There are plenty of paths to explore in the tunnel valley, but four main waymarked routes take you through some of the area’s most varied landscapes and places of interest.
Haderslev Dam route, 12.5 km
Starting in Haderslev, the route follows the southern shore of Haderslev Dam. From Erlev, you continue along Geheimrådens Path, which was established in 1932.
Along the way, you pass Bergs Plads, a large shelter area with barbecue facilities, tables, benches and two landing stages for canoes. The route then takes you past Sophies Kilde, a sacred spring where you can taste the cool spring water.
Continue through the deer park, where fallow deer and red deer graze. At Nørreskovgård, you can enjoy views across Haderslev Dam and take a break at the picnic shelter or nature playground. Toilets are also available here.
The route continues across the Hindemade dam to Restaurant Damende before passing through the village of Fredsted on the way back to Haderslev. Near the old hospital, a short detour takes you down to Haderslev Dam, where you can watch the birdlife. You may even spot one of the sea eagles that live around the lake or see the boat Dorothea out on the water.
Stevning Dam route, 8 km
Starting from the car park at Thyrashul, the route follows Dybdals Bæk through a valley with steep slopes.
Between Thyrashul and Tørning Mill, the route follows a narrow footpath that is not suitable for bicycles or pushchairs and can be wet in places during autumn. Part of the route also crosses meadows with grazing cattle.
North of Stevning Dam, there are views across the lake, forest and meadows. At Tørning Mill, you can visit the mill house from 1 June to 14 August, between 1 pm and 5 pm, except on Mondays and Tuesdays.
Opposite the mill is the Bailiff’s House, with an exhibition about the area’s nature, history and attractions. You will also find a toilet and an information point with a touchscreen here.
From Tørning Mill, the route follows the road through Sandkule Forest to the village of Gammel Ladegård. On the return towards Thyrashul, you pass through the upper part of the tunnel valley, with its hilly terrain, valleys, forests and meadows.
The Hærvejen hiking route provides a walking connection to Vojens.
Christiansdal route, 7.5 km
This route starts at Tørning Mill and heads towards Christiansdal. Along the way, you follow the canal built in 1862 to carry water from Stevning Dam to Christiansdal Hydroelectric Power Plant.
The route passes south of Christiansdal and crosses Tørning Å on a wooden bridge beneath the motorway’s large concrete bridge. The hydroelectric power plant is open to visitors every Thursday from 1 June to 14 August, between 11 am and 2 pm.
From here, the route continues towards Hindemade along the Tørning Canal, which was built in 1935 when Hindemade was drained. From Haderslev Dam, the route climbs through the forest and crosses farmland to Hammelev. You then follow the old church path back to Tørning Mill.
Hindemade route, 4.8 km
Starting from the car park north of Hindemade, this route follows the canal towards Haderslev Dam. The canal was built in 1935 when Hindemade was drained. A nature restoration project has since recreated Hindemade as a shallow lake.
The route continues along the western part of Haderslev Dam and into Pamhule, the largest forest in the area. Here, the path follows the edge of the forest through coniferous woodland before crossing Bibækken, a stream that winds through the hilly forest landscape.







