(Polski) In the commune of Strawczyn, on Sieniawska mountain, an extraordinary place has been created for children and adults. Everyone will find something interesting for themselves there. The place is surrounded by beautiful views and you will find there unique educational playground, recreation area with place for grilling and bonfire. We had the great pleasure to equip the playground with our scientific devices, among others compass, anemometer, chinese whispers, lithophone for experiments with sound, air cannon, xylophone, humming pipes, parabolic telephone, music panel, as well as “elephant’s ear” and “delayed sound” devices. The area looks spectacular, so we encourage everyone in the area to visit this fantastic place.