Radlje ob Dravi Water Park boasts a flattering name for the first and the only biological pool in Slovenia, where only purely natural organisms keep the cleanliness and quality of water. Unlike other swimming pools and swimming baths, chemicals, which would further help to clean the water and make it suitable for bathing, are never added to the swimming water under any circumstances. The maintenance of the natural balance of the swimming pool is crucial so that we can enjoy this green pearl all summer in the pristine surroundings along the Drava River. You are invited to experience the authentic nature of this wonderful piece of Slovenia.