Wind, water, birds, insects, long stretches of quiet in between — outdoor sound doesn't run on one script, and İBB Beykoz Korusu in Beykoz plays its own version, whichever of these actually reaches you here. The smell changes with the season too: damp soil after rain, dry grass under summer heat, a sharper chill in the air once autumn sets in. Small shifts like that are half the point of stepping outside at all.