Submitted by Ramon Krebs, with the specific intent that this route can be linked by public transport (start & end at train stations):

A ridge, very technical and with a breathtaking view. The path is only partially marked, but is easy, always along the ridge... However, it is important to be able to move safely in technical terrain. In addition, easy climbing passages should not be an obstacle.

Website:  http://en.rotavicentina.com/fishermens.html

Always running along the coastline, it follows the trails used by locals to get to the beaches and hot fishing spots.
It is a single track along the cliffs,with plenty of sand, which can only be travelled by foot, and more demanding from a physical point of view.

It started in Odeceixe and ended in Porto Covo. Approx. 75 km.

The Urwaldsteig Edersee is a 68km waymarked loop route on trails around the Edersee reservoir in central Germany.