The cliffs at Etreat, 1866, 90.9 x 113.3 cm, NG of C Gustave Courbet (1819-1877)

The picture has something of this: rock, water, seashore, sea, ocean, landscape, nature, beach, stone, sky, outdoors, scenic, summer, shore, island, coastal, cliff, seascape.
Perhaps it’s a painting of a beach with a boat in the water and a large rock outcropping to the side of the beach.