Bulgaria is in the southeastern Europe and the east part of Balkan Peninsula. Our town Dolni chiflik is in the east of Bulgaria with coordinates latitude 42.98⁰N and longitude 27.72⁰ E. The town is on 15 km. from the Black sea, that’s why the oversea-level is 20metres. For our place of watching we used our schoolyard. It was comfortable because there aren’t a lot of building, which helped us.