Sedir Island, also known as Cleopatra Island, is a small and famous island located in the Gulf of Gökova near Marmaris. It is part of a protected archaeological and natural area and is known for its unique landscape, crystal-clear waters, and historical ruins. The island is accessible by boat from nearby coastal towns and is a popular day-trip destination.

The island, known as Sedir Island (Cleopatra Island), features ancient ruins from the Carian and Roman periods, including remnants of city walls, a small amphitheater, and temple structures. One of its most distinctive features is its famous golden sand beach, which is protected and believed by legend to have been brought from Egypt for Cleopatra. The beach and surrounding waters are part of a strictly managed conservation area to preserve their unique character.

What makes Sedir Island particularly special is the combination of mythology, archaeology, and natural beauty in one small location. Visitors come for both the historical significance and the striking turquoise sea, making it one of the most iconic coastal attractions near Marmaris. Its protected status ensures that the island remains relatively undeveloped and preserves its tranquil, historic atmosphere.