Here are a few suggestions for your next trip from Kamenec(BG)

In 2 hours, you can reach Veliko Tŭrnovo.

In 3 hours, you can reach Pleven.

In 4 hours, you can reach Ruse, Shumen.

In 5 hours, you can reach Sofia, Stara Zagora.

In 6 hours, you can reach Varna.

In 7 hours, you can reach Bucharest, Plovdiv, Burgas, Sliven, Pernik.

In 8 hours, you can reach Dobrich, Blagoevgrad, Haskovo.