Hochholz Observation Tower – Kaltental Lake loop from Erkenbrechtsweiler

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Bike touring routes & trails

Hochholz Observation Tower – Kaltental Lake loop from Erkenbrechtsweiler

Moderate

2.0

(1)

riders

Hochholz Observation Tower – Kaltental Lake loop from Erkenbrechtsweiler

01:24

18.7km

290m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 7, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Biosphärengebiet Schwäbische Alb (Kernzone)

Geopark Schwäbische Alb

Waypoints

Start point

Bus stop

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3.34 km

Astro Path and Sundial on the Swabian Jura

Highlight • Structure

On the astro path one learns worth knowing about planets and the universe.

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Hochholz Observation Tower

Highlight • Viewpoint

The new Heidengraben tower with 102 steps is located at the Hochholz car park, the highest point of the Heidengraben site. From the 18-meter-high viewing platform you can overlook the …

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3.78 km

Heidengraben Gate F Information Panels

Highlight • Historical Site

Station 8 "Walls and Gates" of the Celtic Experience Trail over the fortifications of the Heidengraben. These were once almost 11 km long and had eight gates (A – H). …

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3.78 km

Heidengraben Oppidum

Highlight • Historical Site

At 1,662 hectares, the Heidengraben is the largest Celtic oppidum in Germany and impresses with its well-preserved ramparts, which adapt to the shape of the plateau and were once fortified …

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5.32 km

Heiligenbergweg Trail from Kaltental to Hülben

Highlight (Segment) • Trail

Nice climb through the forest from the Kaltentalstrasse to Hülben. Paved road, partly in poor condition.

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7.95 km

Kaltental Lake

Highlight • Lake

If it has freshly snowed in winter and you are looking for a little peace and quiet, this is the right place.

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8.26 km

Kaltentalhäusle (Villa Hügel)

Highlight • Historical Site

The imposing little house was built in 1884 in an exposed location. A detailed information board was put up for better understanding. The little house is locked, but you can …

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