"World Class Observatories. There is a nice hotel nearby and they offer several packages that are available for anyone to partake of a tour of the facilities and some great star gazing nearby with a professional guide. This has been an international hub for solar astronomy since 1964 with teams from around the world using its sophisticated telescopes to make new discoveries about the sun. It offers good views of both the Northern and Southern Hemisphere sky's. Even without a guide the sky of above the Teide National Park is recognized as a “Starlight Destination” in the “Tourist Destination” category."