Plein air painting is the depiction of landscapes while painting outdoors. The term en plein air in French means “in the open air.” The practice was popularized by French Impressionists in the mid-19th century.
A selection of the artwork is below. To view images at full size and see the names of the artists when available, select a photo, hover your mouse on the right side of it, and use the arrows to scroll through. (The photo above is by Jared Clackner.)