I've been an activity coordinator in a 52 bed nursing home for over 5 years now. Aside from activities and events, I have some experience of inspections - from CHC/CQC, completing audits, how funding works (though not an expert), working with challenging beahviour and supporting students through placements (including those with additional needs).
I've only worked in the one home but do speak to others AC's so know a bit about how it works in other companies too.