Paul Klee frequently used the boat motive through out his career, even as his work became progressively abstract the boat remained. "Coast of Provence 6" is an extremely sophisticated painting - notice the waves of yellow on the diagonal that seam to sweep across the surface creating a shimmering glow. The rectangles are the buildings around the port and the triangles and squares above are the boats on the water.
Rebecca mentioned that yellow was the fourth and often neglected nautical colour, as you can see, Paul Klee does not ignore its potential.
"Coast of Provence 6", 1927, water colour on paper, 22.8 x 30cm.