A serene sea scene rendered with SVG and animated using D3.js v6. The visualization depicts a sailboat with a brown hull, green triangular sail, and mast, floating on a deep blue ocean with white wave circles oscillating vertically via chained transitions with sinusoidal easing. Clouds drift horizontally across the sky using linear transitions, while simple black bird shapes flap through the air. The code constructs the scene procedurally, generating wave data with `d3.range` and `Math.sin`, and animates all elements using D3 transitions with recursive callbacks for infinite looping.