If there is a Bosnian short distance, mountain running, test piece, the round trip from the village of Diva Grabovica to Hajdučka Vrata is it.

Towering over downtown Sarajevo, Trebević is an extremely popular mountain for hiking and trail running nearly year round. Trebević was the setting for multiple events during the 1984 Winter Olympics in Sarajevo and most routes up the mountain travel past the old, graffitied, bullet pocked Olympic luge track.

https://www.derwentvalleytrust.org.uk/walk/

http://www.derwentvalleymills.org/get-active/heritage-way/

The Derwent Valley Heritage Way starts at Hetherdene Car park near Ladybower reservoir in the Peak District and winds its way from there to Shardlow some 53 (ish) miles away in South Derbyshire.