Visitors to Røsnæs should not miss out on a walk at Vindekilde. Park you car at the car park by the woods just before the NatureSchooland walk south-south-westwards across the common.
Then you walk up the hill and end up at the coast with a fantastic view. You pass through bush-like scrub, incredibly rich flora, as well as as insects, adders, grass snakes, sand lizards and newts.
The area was protected in 1924, becoming one of Denmark's first nature reserves. - The flowers on the common are not a product of agriculture - they have survived since prehistoric times. You will find them in soil that has never been ploughed where grazing livestock has kept the grass, scrub and bushes in check just like their forebears.
The scrub fashioned by the wind on the slopes and in gulleys is perhaps the most splendid of its kind in Denmark. A clearly marked path follows the top of the slope and runs down into the gulley near where the springwater discharges into the sea. The remains of a former beaver farm can be seen in the form of a series of concrete pipes dug into the slope.
The exciting flora on the dry, sunny slopes includes species otherwise characteristic of the European steppes further to the south and east of Denmark. Field mugwort, nodding cowbells, smooth cat's tail grass and tuberous spiraea are found here on the northern limits of their area of distribution and are seldom seen in Denmark.
The area's insect life is also rich and distinctive. Most conspicuous are the many species of butterflies.