The cave is one of the Kilkis axiologotera Greece and is located at the foot of the dominant hill town St. George, has an area of ​​over a thousand square meters and a total length of paths explored three hundred meters and is 2 floors.It have rare decoration of coral material and numerous stalactites , stalagmites and compositions which give separate beauty.Also, presents scientific interest both because findings prehistoric periods and medically as suitable for treating respiratory ilness.For all that attracts thousands of visitors every year and is one of the main attractions of Kilkis .

After studying the cave of Kilkis emerged that are perfect and gathers all the conditions as Spilaiotherapeftko center. The Spilaiotherapeia may have a beneficial effect :

• In cases of chronic respiratory diseases (asthma ) with very good results in children.
• In the treatment of skin diseases derived from infection of allergic forms .
• In general rejuvenation of the human body.

To these help the good conditions of temperature and humidity, the lack of ozone and dust , low or no existence of microorganisms and finally the presence of an acidic environment, asvastiou , magnesium and a number of other physical and chemical factors.