Euboea or Evia (Greek: Εύβοια, Évvia, pronounced ([ˈevia]) is the second-largest Greek island in area and population, after Crete. It is separated from mainland Greece by the narrow Euripus Strait (only 40 metres at its narrowest point). In general outline it is a long and narrow island; it is about 180 kilometres (110 mi) long, and varies in breadth from 50 kilometres (31 mi) to 6 kilometres (3.7 mi). Its geographic orientation is from northwest to southeast, and it is traversed throughout its length by a mountain range.
Evia has wonderful beaches, a pleasant climate, renowned monuments, many thermal sources and tasty food and is, therefore, a popular and nearby destination for the inhabitants of Athens.
Almost 80 km away from Athens and a road access to the rest of Evia, Chalkida, the city of the sacred spring Arethusa, is known for its famous tidal phenomenon, where once every six hours tidal currents reverse direction. The beautiful capital of the island, built on both sides of the Straits of Evripos, is also a favorite destination for a daytrip. The road from Chalkida to Aidipsos around the northern part of the island perfectly combines the sea and the mountain, is a scenic serpentine route through the mountain, adorned with conifer forests, olive groves as well as all kinds of wild flowers and herbs. The village Prokopi, where one can see the relic of St. John the Russian, is probably the most famous point for the tourists of Evia. In the northern part of the island, one reaches Loutra Aidipsou, with more than 80 thermal baths and excellent tourist infrastructure.
South Evia is equally interesting and enjoys a great tourist development, though it has completely different features from those of the north part of the island. It is less forested, yet it nestles sites of rare natural beauty; it enjoys an ecosystem with rare flora, beautiful canyons, an enchanting coastline with sandy beaches, picturesque islets and the legendary cape Cavo Doro.