The Regetovka Bog National Nature Reserve. The bog is located near the municipality of Regetovka, at the foot of the hill Paledovka in the mountains Busov, approximately 520-550 meters above sea level. On an area of 2.55 hectares, it represents a rare bog habitat. It is located in a wet depression, locally called Stav, which is flooded by streams flowing along the flysch formations. The wettest part, continuously covered with peat, is located in the middle of the depression. It is overgrown with typical groups of shrubs, alder and willows. Depending on the depth of the peat, we can find there several types of plants. Some areas used to be regularly mowed in the past, thus creating the conditions for very rare plant species. Meadows flourish with sedges, bogbean, sundew, crested fern, broad-leaved marsh orchid and the very jewel – the marsh calla. The plants thrive in peat bogs and moss. Similar communities are nowhere to be found in whole eastern Slovakia.