Scenic Koycegiz Lake, located near Dalaman International Airport and within a convenient distance of both Fethiye and Marmaris, is well known for itsnatural hot springs and mud baths.

The lake narrows into a channel, flowing into the Dalyan River which empties into the Mediterranean at one of Turkey’s most spectacular beaches, lztuzu, which is also the breeding ground of the “Caretta caretta” sea turtle. The reed-lined river meanders toward the sea, overlooked by 4th-century B.C. Lycian rock tombs. Nearby are the ruins of the ancient city of Caunos. On the asphalt road to Velibey is the ancient settlement now at Sultaniye, also a thermal center used for centuries, and site of numerous ruins.

Situated next to a natural channel between Koycegiz Lake and the Mediterranean Sea, the Riza Cavus Thermal Baths form a water pool and a mud pond, with a flow rate of about 8 liters per second. The mud and mineral baths can accommodate 1,000 people per day. At a second spring is Velibey Thermal Baths, 1.5 km north of Riza Cavus that has similar qualities and a flow rate of 20 liters per second. Thewaters of Sultaniye are good for bathing and drinking. They flow at a rate of 42 liters per second, resulting in a bath capacity of 10,000 baths per day.

Caunos Rock Tombs, Mugla

Physio-chemical Characteristics and Indications
The Riza Cavus natural hot springs contain sodium chloride, hydrogen, sulfur, bromide, fluoride, and are naturally radioactive (3,770 picokuri/liter, or 139 bekerel/liter), with a total salt and mineral content of 2,800 mg/It. The temperature of the mud and water is 30′ to 38 C, and the pH is about 6.5. These hot springs are good for the treatment of rheumatic, dermatological and gynecological diseases, as well as neurological and physical exhaustion.

Treatments and Accommodations
The Koycegiz baths do not offer overnight accommodations so visitors stay at small hotels and guest houses in nearby Dalyan. The baths can be reached from Dalyan by small boats.

The treatment consists of covering the body with a layer of mud and then soaking in the hot mineral water. At Sultaniye, it is possible to find accommodation in village houses for up to 400 people.

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