Starting in the city of Plovdiv, this road trip explores Bulgaria's lesser-known wonders as you take the picturesque route through the Strandzha Mountains and along the wild Black Sea Coast. Key highlights include the Strandzha Nature Park, where you can find ancient Thracian sanctuaries, the picturesque riverside of Silistar, and the beautiful coastal villages of Sinemorets, Ahtopol, and Kiten.