Patmos is a relatively small island, with a maximum length of 10 miles and a maximum width of 6 miles, with a total coastline length of 18 miles. Its area is approximately 34.142 square kilometers, with rocky and barren terrain. It resembles Ithaca in terms of its shape and coastline, with the only difference being that it is three times larger in size.

Patmos is mainly composed of three interconnected sections, linked by two isthmuses around the middle of the island, which was its capital in ancient times (ruins still exist), and towards the southern tip.

Its terrain is rocky, volcanic, and steep, with the highest peak being Mount Profitis Ilias (270 m) located in the center of the island, south of Chora (the capital of Patmos). There are two other elevations, one in the northern part called "Sklares" and one in the south called "Praso."

Patmos, as an earthly paradise, awaits its visitors to reveal all the beauty that not only nature has bestowed upon it but also the Supreme Power that determined its destiny and purpose.

The island of Revelation and the Jerusalem of the Aegean, as Patmos is known worldwide, is the island where Saint John the Theologian was exiled to practice asceticism and subsequently wrote the holy Book of Revelation around 95 AD. It is one of the most significant religious and atmospheric destinations, combining tranquility, serenity, quaintness, mysticism, and recreation, embracing every visitor with its aura.

Its intricate lace-like coastline, ten times longer than its land area in comparison to Greece, creates unique coves and beaches, some with pebbles, some with sand, and others with rocks and caves, making Patmos an ideal destination for peace, tranquility, charm, mystique, and relaxation, enveloping every visitor with its atmosphere.

The medieval town of Chora, with the Monastery of Saint John the Theologian towering like a crown at its peak, the picturesque and intricate alleys, and the noble houses surrounding the Monastery, along with the distinctive architecture of the settlements, offer visitors the unique opportunity to explore a world both foreign and modern, combining serenity with an effortless cosmopolitan element and culture.

Recognizing and accepting the uniqueness and sacred aspect of this place, the Greek state, in 1981, declared Patmos a "Holy Island" by a law of the national parliament, while UNESCO in 1999 classified the Town of Patmos, the Monastery of Saint John the Theologian, and the Cave of the Apocalypse as World Heritage Sites, emphasizing once again the island's importance and unchanging beauty throughout the centuries. Additionally, Patmos is part of the COESIMA network as one of the seven major pilgrimage sites in Europe.