Adventure bike tour Altenau-Clausthal-Okertalsperre

Medium-difficulty cycle tour via Altenau, Clausthal, Langetal and the Oker dam to the old railway station in Altenau

The cycle tour takes you from Altenau via the "Alte Bahntrasse" to Clausthal, on through the Langetal to the Okertalsperre/Hauptsperrmauer/Vorsperrmauer and back to the old railway station in Altenau.

The easy to moderately difficult cycle tour is easy to ride on a touring bike as well as an e-bike or mountain bike.

Details of the adventure bike tour

Start and finish: "Rothenberger Straße / Hüttenteich" car park
Type of cycle tour: Circular cycle tour
Level of difficulty: Medium
Length: 27.8 kilometres
Duration: Approx. 2-3 hours
Ascent: 180 metres in altitude
Descent: 186 vertical metres
Highest point: 584 metres
Lowest point: 404 metres
Best time of year: April to October
Geographical coordinates: 51.799219, 10.433625
UTM coordinates: 32U 598856 5739679
Directions to the start: From the direction of Goslar towards Oker and then on the B498 towards Altenau. From Altenau take the B498 in the direction of Goslar.
Car park: Rothenberger Straße / Hüttenteich car park

Route description of the adventure bike tour through the Harz Mountains

The beautiful cycle tour starts at the "Rothenberger Straße / Hüttenteich" car park and leads along the old railway line in the direction of Clausthal. The ascent is steady but only moderate. At the end of the former railway line, cycle up the small ascent and follow the forest road/border path on the right for around 3 kilometres before turning right into the "Langetal". You will pass the "Langeteich", which is part of the Upper Harz Water Management UNESCO World Heritage Site and is therefore a protected monument. Then continue along the forest road to the end of the Langetal valley, cycle on to the left and reach the L 517. Oker dam along the dam. You cross the Bramkebrücke bridge, at the crossroads continue in the direction of Goslar until you reach the main dam wall, which you then cross to continue the cycle tour along the Oker dam on the tarmac forest road. Rest benches along the dam invite you to linger. After around 8 km, you reach the outer dam wall and cross it, cycling on towards Altenau and follow the main road until you can turn into Rothenbergstraße to return to the starting point.

Oker dam Upper Harz. Cycling

Explore the Oker reservoir

In summer, the Oker reservoir offers ideal conditions for water sports. Here you can swim, surf or go on boat trips. The excursion boat, which operates on the reservoir almost all year round, takes visitors on a discovery tour of the numerous and beautifully situated bays.

But anglers also get their money's worth at the Oker reservoir and can enjoy fishing numerous different species of fish.

Oker valley reservoir Oberharz cycle tour