Karaada Island

Karaada — literally "Black Island" in Turkish, and known to the ancient Greeks as Arkonnesos — sits around 6 kilometres off Bodrum's coast and is the largest of the islands scattered along this stretch of the Aegean. It runs roughly 7 kilometres from end to end, covers something in the order of 910 hectares of pine forest, olive trees and low Mediterranean scrub, and rises to about 400 metres along its highest ridge. It sits close enough to town to close off the view from almost every waterfront table in Bodrum, yet it has no village, no road network and no resort — only a jetty, a shoreline cave and a handful of sheltered bays that boats have been using for centuries.

An Island Called Arkonnesos

Its history stretches back to antiquity: during Alexander the Great's siege of Halicarnassus, Persian troops are said to have retreated to the island after setting fire to the city. That siege took place in the autumn of 334 BC and was one of the hardest fights of Alexander's advance through Anatolia — Halicarnassus was defended by walls in excellent repair and by a garrison under Memnon of Rhodes, the most capable commander the Persian side could field on this coast. When the defenders finally gave up the city they burned what they could not hold and withdrew by sea, and Arkonnesos, lying directly across the harbour mouth, was the obvious refuge.

Halicarnassus itself was the capital of Caria and the site of the tomb of Mausolus, the monument that gave every later European language the word "mausoleum" and that ancient writers counted among the seven wonders of the world. The island watched all of it from a few kilometres offshore. Control later passed to the Knights Hospitaller in the Middle Ages — Greek speakers of the period knew the island as Arkos — then to the Ottomans in the early 16th century, and briefly to Italy between 1919 and 1932, when the island was formally assigned to Turkey by a convention signed between the two states.

The Cave and Its Hot Spring

Today Karaada is best known for a sea-level cave where a natural hot spring feeds warmer water into a shallow pool, popularly linked to a Cleopatra legend and used by visitors for an informal mud treatment. The spring lies on the northern side of the island, roughly 5 kilometres from Bodrum harbour. Turkish thermal records put the water at about 33°C with a pH of 6.3 and classify it as a sodium chloride mineral water carrying small quantities of fluoride, bromide, sulphate, calcium, magnesium and dissolved carbon dioxide. The water rises inside the cave, gathers in a pool built at the shoreline and then drains out into the sea, which is why the shallows immediately in front of the cave feel noticeably warmer than the open bay.

In the traditional Turkish literature on mineral springs, bathing here is associated with rheumatic complaints, slow-healing fractures, chronic inflammatory conditions and stiffened joints. The Cleopatra story — that mud from this cave was once shipped to the Egyptian queen for her complexion — belongs firmly to local folklore rather than to any surviving ancient source, but it is repeated on every day boat and has long since become part of the island's identity. The mud itself is real enough, as is the faint sulphurous smell inside the cave. Its commercial potential has been noticed at official level too: in 2012 the Karaada geothermal field was put out to tender by Turkey's General Directorate of Mineral Research and Exploration and leased for 99 years, the winning bidder promising low-rise development integrated into the landscape rather than a conventional resort.

Pine Slopes, Clear Water and Quiet Bays

The island's rocky shoreline and pine cover give it a wilder look than the developed parts of the Bodrum coast, and its waters are clear enough for casual snorkelling close to the anchorages. Despite the name, Karaada reads green rather than black from the water; the dark impression comes from the way its steep, forested flanks fall into shadow in the afternoon light. Red pine dominates the higher ground, with olive and scrub filling the gaps, and the shoreline alternates between shingle pockets and low rock shelves that drop quickly into deep water — good conditions for swimming straight off a boat, and one reason the island is a regular stop for Bodrum dive operators. A rocky hollow on the coast is known locally as the meteor crater and draws cliff jumpers, though the name is tradition rather than confirmed geology.

Visiting Karaada from Bodrum

Its proximity to Bodrum marina makes Karaada one of the most frequently visited stops on a gulet route, and many charter guests anchor here for the afternoon before continuing on to quieter bays further down the peninsula. Day boats leave Bodrum and Gümbet throughout the season on circuits that typically combine the thermal cave with two or three swimming stops, and on a gulet the crossing takes well under an hour from the town harbour. The practical season runs from roughly May to October, with July and August bringing both the warmest sea and the strongest afternoon meltemi — the north-westerly that builds most summer days on this coast and can make the exposed northern shore uncomfortable after lunch.

There is nothing to buy on the island beyond what the boats bring, so water, a hat and something for your feet are worth having; the rock inside and around the cave is slick, and the mud stains light-coloured swimwear. Whatever you make of the Cleopatra story, the combination is hard to find elsewhere on the peninsula — a warm spring inside a cave, a forested ridge rising behind it, and the whole of Bodrum, castle included, laid out across the water in front of you.