Once one gets into Tsarevo, it is worth spending a (cloudy) day away from the beach, deep into the Stradzha Mountain. The mountain was declared a natural park in 1995 (in fact being the largest one in Bulgaria) and is one of the least explored in Bulgaria, which explains the richness of its wildlife. The mountain also has a lot of caves (particularly in its western part), traces of ancient civilisations (such as stone figures, sun discs carved in stone, Thracian dolmens, fortress walls, protobulgarian sanctuaries, etc).
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