The Strandzha mountains coast, roughly everything along the Black Sea south of Burgas, is about 100 km long as the crow flies. Yet it is very varied. You will discover smaller and bigger bays, old towns and purpose-built modern resorts, a campsite or two, a number of picturesque rivers, inlets and... islands. In fact all of Bulgaria's islands are along the Strandzha coast. You will probably be underwhelmed, however. There are just four of them, not counting the St Kirik Isle north of Sozopol which was appended to the mainland, in the 20th century, with a quay.