For me one of the best places to go camping is Greece. It's not so far away from Bulgaria and there are many places where you can spend your vacation.
Camping Kouyoni is a very nice place in the hart of Halkidiki. It's located 75 km southeast of Thessaloniki on the beach of Gerakini. You can take advantage of it's perfect location to visit some other nice places around.
Here are some photos capturing the incredible view from the road just after the city of Nikiti.