Sinemoretz is situated near to the mouth of the River Veleca in the area of the National Park Strandza.
Strandza Nature Park is the biggest protected area in Bulgaria.
It occupies 1.161 km2 about 1% of the national territory and 23.5% of the total protected territory in the country.
The park includes the Bulgarian sector of the Strandza Mountains, bordering Turkey in the south and the Black Sea on the East.
Over 50% of the Bulgarian flora is represented there with a big number of endemic, relict, rare and threatened Red Book species.
The Strandza Rhododendron (Rhododendron ponticum), flowering with fabulously beautiful violet flowers,
Birds are the other wealth of the Strandza forests: 124 bird species nest only on the territory of the park. In addition to the birds nesting here, the flocks of migrating birds fly over the park along the major migration route known as Via Pontica, which gives opportunities for bird watching of a total of 257 bird species, 149 of which are of European nature protection significance. is a symbol of the Park. The centuries-old natural Strandza forest hides Tertiary relicts and local endemic plant species that can be seen only here. The relict plant community and individual plants have remained since the Tertiary Age (about 70 million years ago). The total numbers of plant species in Strandza is about 1,665.