Karystos or
Carystus is a small coastal town on the
Greek island of
Euboea. It has about 5,000 inhabitants (12,000 in the municipality). It lies 129 km south of
Chalkis. From
Athens it is accessible by ferry via
Marmari from the port of
Rafina. Its urban plan was laid out by the renowned
Bavarian civil engineer Bierbach, in the middle of the 19th century, near the site of the ancient city of
Carystus.