I love your marketing brain, can I steal it haha! You've got me thinking, maybe I could look out for special upcoming events (eg exhibitions as you said) and create packages with limited availability for each one. So an hour of intimate time in the hotel followed by the event or tour then lunch or the other way round. Thanks for the inspiration 80's 

So many ideas, so hard to actually implement them, haha

Limited availability packages are brilliant.
If you want to make social media posts to promote them, Canva is a great, free, online tool.