In Cassis, Henri Rivière captures a tranquil marine landscape. The painting features soft blues and greens, reflecting the serene waters of the sea. Gentle waves lap against the shore, while a distant horizon hints at a setting sun.

The overall atmosphere is peaceful and inviting, drawing the viewer into the scene. The painting is executed in oil on canvas, typical of the Impressionist style. Rivière's brushwork is loose and fluid, allowing for a sense of movement in the water. The colors are vibrant yet harmonious, creating a cohesive image.

This technique emphasizes the natural beauty of the coastal setting. Henri Rivière was known for his depictions of landscapes and seascapes, often inspired by the French coast. Cassis is a fine example of his ability to convey the essence of a moment in nature. Interestingly, Rivière was also a printmaker, which influenced his approach to color and form in painting.

This work reflects his deep appreciation for the beauty of the natural world.