A minimalist, flat design of an empty beach with clear blue water and sky, featuring a red wooden Adirondack chair in the foreground on the right side, capturing the serene beauty of coastal summer scenery. The background is filled with gentle waves gently lapping at the shore, creating a tranquil atmosphere. The focus should be centered around the chair, which stands out against the white sand to create contrast. This scene embodies minimalism and simplicity while highlighting the natural elements of sea and sun.