According to the information published by The Municipality of Köyceğiz, Sultaniye Hot Springs is the hot spring with the highest radioactivity in Turkey. Water at a temperature of 39 degrees contains calcium chloride, calcium sulfate, calcium sulfur and radon.
Large rock tombs belonging to the Kaunos people are seen on a steep hillside right opposite dalyan town. These rock tombs have become the symbol of Kaunos and Dalyan.
Iztuzu, which also has the award of being the second beach in the world to maintain its naturalness, is a 7 km long nature harrow. It is said that there is no similar beach with sweet water on one side and mediterranean on the other.