In this study, physico-chemical and microbiological researches were performed during tourism season from March to October. As a result of this study, 0.342 mu gatom/l Nitrite and 0.683mg/l silicate in 5th station, 5.840 mu gatom/l Ammonium in 3rd station, 4.147mg/l Anionic detergent in 7th station and 1.01 mu gatom/l ortophosphate in 8th station were determined as averages. Escherichia coli and faecal streptococci were determined as >1800colony/l in 3rd station (Icmeler). Total coliform was found as 5000 colony/l in 8th station. Total beta 20.47pCi/g in 8th station and radium 3.81pCi/l in 4th station were found. To sum up, none of the risk level of the microbiological and physico-chemical.