Skyward shot of a tall observation tower which gives visitors a bird's eye view of the surrounding landscape, Kalmthoutse Heid, Belgium

watch tower kalmthoutse heide observation high tall metal view viewpoint landscape tracking skywards looking up reveal design steel sunshine blue sky outdoors nature sun national reserve border park de zoom trees branches structure hide lookout point adventure green aerial park orbit point of interest circling tranquillity environment tourist tourism spiral staircase technology communication netherlands flanders belgium