Euboea is one of the regional units of Greece. It is part of the administrative region of Central Greece. It consists of the islands of Euboea and Skyros, as well as a 260 km² area on the Greek mainland. Its land area is 4,167.449 km², whereas the total land area of the municipalities actually on the island Euboea is 3,684.848 km², which includes that of numerous small offshore islets near Euboea's southern tip.