Complex sentence: The cheap seats are Sol--full sun, and the most expensive seats are Sombra--full shade, and a Sol y Sombra ticket has some shade and some sun throughout the day.
Split into simpler sentences: The cheap seats are Sol, and are in the full sun, whereas the most expensive seats are Sombra and are fully shaded. A Sol y Sombra ticket has some shade and some sun throughout the day.