Bulgaria: E4 and Sultans Trail from Serbian border to Sofia
Hiking
- Distance
- 48.63mi
- Elevation +
- 3419f
- TrailRank
- 29
![Photo ofBulgaria: E4 and Sultans Trail from Serbian border to Sofia](https://s1.wklcdn.com/image_63/1902180/25556011/16315174.400x300.jpg)
![Photo ofBulgaria: E4 and Sultans Trail from Serbian border to Sofia](https://s1.wklcdn.com/image_63/1902180/25556011/16315180.400x300.jpg)
![Photo ofBulgaria: E4 and Sultans Trail from Serbian border to Sofia](https://s2.wklcdn.com/image_63/1902180/25556011/16315184.400x300.jpg)
Taking up long distance walking on retirement I walked across Europe in sections on the E4 European Long Distance Path, writing a book about it called "Six Pairs of Boots: Spain to Cyprus on the E4 Trail" from Amazon and all good online bookshops. On a hike from Land's End to John o'Groats I discovered an arthritic left knee. It's not stopped me, currently on E2.