  Astronomy education and outreach are very important when it comes to the
future generation's interest in science. The Czech Astronomy Olympiad shows how
an educational competition for secondary and high schools can help us drive
innovation and promote inclusion and diversity. In this work, we introduce the
scope of this competition and show statistics on participation. We also discuss
some of the steps taken to make astronomy accessible to a wider audience, such
as organising international workshops. In addition, we explore some of the
approaches which were adopted to broaden the Olympiad's reach and impact. These
include, e.g., developing a dedicated website environment or publishing Open
Access booklets with solved problems.
