Tricky place to go to without a car, on the edge of a golf course. You take Saltsjöbanan from Slussen (replecement bus first bit at the moment) to Östervik station. Then there's a short cut less than half the way Google Maps show for walking, see map included with the images. Just before the dog care center, "Hundar i alla väder", you walk through the groove and then there's a short walk on the edge of the groove when you come to the meadow before you see the little house.