We are sitting beneath a vast oak tree and enjoy splendid elder flower juice. It is made by Nataša Kozlica, owner of the family farm Goranska Borovnica (Highlander Blueberry) and it just suits great in already warm end of spring. She is accompanied by three generations of her family, a dog, and a cat. Oh yes, also a wooden bear looks at us, as part of the education garden where school kids come to learn more about self-grown herbs and students have their practical work. But t