Stepping into the 760-metre man-made cave bath, we find ourselves in the magical world of the Avatar movies. Built on the medicinal water that breaks out here, a special spa complex awaits us, with a slide tower, fairy cave adventure pool, goblin cave, fairytale island, thermal bay, lazy river and sauna cave. Whether we go bathing in Demjén with children or with a group of adults, we can have an unforgettable experience.