Tony painting the North Face of Everest from above Rongbuk Monastery in Tibet, 2007

Exploring Time presents a set of extraordinary watercolor diaries that tell of nature’s processes in some of the wildest places on Earth. Evidence of geological change, biological change, as well as human-induced change are present in Foster’s landscapes. His experienced eye locates nature’s power, its fragility and adaptability, including places where industrial sites have been reclaimed.

While we have become accustomed to focusing on environmental change through dramatic images of a warming planet, Foster’s exhibition takes the long view. He is interested in Earth’s on-going evolution, in how time makes itself evident and how change remains ever-present in the natural world. Dividing the exhibition into four groupings—geological, biological, human time and fleeting moments—enables audiences to connect to the understanding of millennia as readily as the timespan of a human life while wrestling with the realities of humanity’s footprint.

Cornwall Museum and Art Gallery, Truro
July 8 - October 25, 2025

Royal Watercolour Society (RWS) Gallery, London
Nov 8 - December 20, 2025

Dayton Art Institute, Ohio
Feb 21 - May 17, 2026

Fred Jones Museum of Art, University of Oklahoma,
Norman, Oklahoma

Dates to be announced

Boise Art Museum, Idaho

The Foster Museum, Palo Alto, California

Additional venues and dates to be announced