The route is a loop course around the city of Karlsruhe; app. 31km long and flat (80m of elevation, mostly from bridges crossing streets).

It is a variation of the NaturRADtour Karlsruhe:

https://www.karlsruhe-erleben.de/en/freetime/cycling/naturradtour

As the NaturRADtour is a bike trail I did a few changes to hopefully make it a better running route:

Gunung Datuk is located at Rembau town, in the state of Negeri Sembilan, Malaysia. Standing at 885 meters high, Gunung Datuk gives a 360 degree panorama view of the state.  The summit is easily identified by the formation of huge rocks with steel ladders for assistance.  

The 157km-long Seoul Trail surrounding the city has eight courses. They contain stories about the history of Seoul, its culture, and ecosystem. Visitors will find that the courses offer many things to experience and enjoy. The courses run through forests, along streams, and through villages. Visitors can rest at lounges and cafes along the courses. They can learn about the country’s history at olden-day temples and historical sites.

The Millennium Trail is located in Bernheim Forest. The trail is the longest trail in the Forest. The trail features steep ascents and descents as well as multiple creek crossings. There are also lots of trees down.