In the Grand Canyon and on the icy flanks of Mount Everest, deep in rainforests and deserts, under water and at the mouths of live volcanoes Tony Foster paints his expansive watercolours at the edges of the world. Presented here with personal accounts of his journeys, they are an exultant testament to the power of art and the richness and fragility of our planet. His meticulously executed watercolours demonstrate his complete mastery of the centuries-old tradition of English landscape painting. For Foster each work is a page in a visual diary, a richly pictorial chronicle of events and encounters along the way which constitutes both journey and destination. In his composite images, maps and diagrams, together with details of flora and fauna, contextualize the principal subjects. The packets of seeds, like the pouches of volcanic dust, combine similarly the narrative of particular journeys with different time scales and forces of nature. Tony Foster has succeeded in seeing, and conveying by means of the most subtle of visual metaphors, eternity in a grain of sand.