Seascape (Gravelines), painted by French Neo-Impressionist Georges Seurat in 1890, is a small, nearly abstract study capturing the light and atmosphere of the northern French coast using his signature pointillist technique of distinct dots of colour, creating a serene view of dunes and the sea with shimmering water, part of a series of works from his final summer painting near Gravelines. 

Key Aspects of Seascape (Gravelines):
Technique: A prime example of Pointillism, where small, unblended dots of pure colour are placed side-by-side, optically blending in the viewer's eye to create vibrant hues and subtle tonal shifts.

Subject: A tranquil view of a sandy dune, the sea, and the sky, conveying the specific light and air of the French coast.

Composition: Features bands of blue (clouds) against a yellow sky and a dark border, creating a framed, almost abstract effect, noted for its simplicity and radiance, notes The Courtauld.

Context: Painted in 1890 during Seurat's summer visits to Gravelines, it's one of several seascapes from that location, often created on thin panels for pleasure, with sand embedded in the paint showing it was painted outdoors, says The Courtauld.

Significance: Showcases Seurat's mastery in capturing natural light and atmosphere through colour theory, defining Neo-Impressionism,