In order for modern people to understand various processes of nature and flora, which are closely related to cultural and historical heritage, the association “Watermarks“ was founded. The most significant event and the face of the “Watermarks“ association implemented so far is the “Days of Hay“ - a plein air of sculptures made from hay, which has been held in the garden of apples of the Kaldabruņa school for ten years in early July. In the permanent exhibition “Meadow Museum“ created by the “Watermarks” association, you can view the multimedia exposition “Midnight Meadow“ dedicated to nature, scenery and traditions. In the museum, you can get to know various meadow plants, including protected ones, warm up with a cup of herbal tea, and participate in creative workshops on glass and woodworking, laser engraving, and working with natural materials. Interior items and original jewelry are born in this workshop, for example, unique glass jewelry with live Selonian plants embedded in it. These workshops result in original ornaments and interior objects, which can be bought and ordered. In the outdoor area of the Meadow Museum you can visit the nursery of medicinal plants and exhibition areas of protected plants.