Circuito de senderismo de 210.84 km desde Popovo. El desnivel positivo es de 2763 m, con una altitud entre 16 m y 318 m. Duración estimada: 73 h. Municipio de salida: Popovo (Разград, Bulgarie).
Esta ruta incluye 11 subidas significativas. Con un desnivel acumulado de 1604 m a lo largo de 78.22 km, con una pendiente media del 2.1%.
- Climb 1 (at km 17.97 km): +83 m over 16.32 km, average slope 0.5%
- Climb 2 (at km 85.60 km): +177 m over 4.69 km, average slope 3.8%
- Climb 3 (at km 105.65 km): +70 m over 2.05 km, average slope 3.4%
- Climb 4 (at km 164.92 km): +157 m over 5.42 km, average slope 2.9%
- Climb 5 (at km 273.22 km): +149 m over 8.49 km, average slope 1.8%
- Climb 6 (at km 310.09 km): +46 m over 7.29 km, average slope 0.6%
- Climb 7 (at km 371.30 km): +121 m over 2.50 km, average slope 4.8%
- Climb 8 (at km 382.84 km): +65 m over 4.88 km, average slope 1.3%
- Climb 9 (at km 397.08 km): +153 m over 3.51 km, average slope 4.4%
- Climb 10 (at km 496.38 km): +409 m over 15.40 km, average slope 2.7%
- Climb 11 (at km 511.60 km): +174 m over 7.68 km, average slope 2.3%
