David Lintern returns to the centre for his first post lockdown overnighter. After dark confinement, air and space and the colours of summer. Down in the glen, the first blaeberries, voluptuous purple bell heather and the vivid yokes of bog asphodel line the path. Further up, fresh juniper, birch and pine shoots wave skinny young arms in praise of a warm breeze. Topping out, there are fluorescent green flushes with rust oxide hearts, sharp edged newly bolted deer grass, fluffy head-nodding cotton grass, clusters of dusky white, purple and pink Orchids. It’s an outdoor festival, a landscape in motion. The…