Strandzha is a natural park in Bulgaria.

Its area is 1161 km² and covers the central Strandzha with access to the Black Sea. Among the sights are the caves and springs along the Mladezhka River, the Elenina Hole cave near the Byala Voda village, the Maharata Cave near the village of Kosti and the marble dome tombs in the Propada and Mishkova Niva areas. There are 54 species of mammals and 261 species of birds in the park.

In the region of Strandzha are preserved many monuments of spiritual and material culture from previous ages. Almost uninterrupted are cultural layers of Eneolithic and Bronze Age, Thracian megalith culture, antiquity, Middle Ages, Bulgarian Renaissance, to our latest history alternate. A pivotal moment in the development of the territory is the age of the Odrysko-Sapiyian dynasty, when Bizzia (today's city of Vizas in Turkey) became the capital of the Odrysian kingdom. The period of the Biblical Culture - I century BC, refers to a number of mound necropolises and separate tombs, including the dome-sanctuary-sanctuary in the Mishkova Niva area. The sunken settlements in the Bulgarian Black Sea aquatory are also unique. In the adjoining area of the park are located objects of marine origin in the Gulf of Varvara, Sinemorets, Ahtopol, Silistar and north of the mouth of Rezovska river who have direct evidence developed Thracian civilization with active navigation, shipbuilding, economic and commercial ties long before the Greek colonization.

Today within the park are more than 450 monuments, 20 dolmens, 11 separate mounds, 24 necropolises, two unique domed tombs, 13 ancient medieval villages, 17 castles, ancient roads, 83 chapels, stolnins and small monasteries here and a historical a place of national significance - Petrova niva. A significant part of these monuments are related to the mining process developed in the antiquity to date, as evidenced by the many rupees.

The park has 280 architectural and artistic monuments, including 18 churches, 268 houses and 4 historic monuments testifying to the Ilinden Uprising.