kaliakra is a cape in the southern dobruja region of the northern bulgarian black sea coast

rock sea arch ruins coast cliff terrain wall architecture temple ocean vacation landmark formation fortification shore geology wood sand kaliakra cape southern dobruja region northern bulgarian black ends long narrow headland kilometres kavarna varna southwest mangalia vertical cliffs reaching metres nature reserve dolphins cormorants observed sits pontica major bird migration route africa eastern europe migrant birds spring coastline home breeding unusual saker falcon lesser grey shrike host