We are a small municipality, not an operator, but we keep a certified observation point with a gravel platform and an information panel. It is free and open all year. We also publish the moon phase on our notice board, because half of the complaints we used to get were from people arriving on a full-moon night.
We tested a screen reader with the calendar: it works, but the date picker is a form with no labels. The PDFs are fine if they are tagged; ours were not. Alternative text in the photographs of the itinerary is what we are fixing now.
