I know, very old thread, but- That would be a very helpful feature! We charge event rates for certain weekends. We're in a college town, so regular holidays aren't a big deal, but university events are. Certain weekends book a year or more in advance. A public note on the calendar would offer guests an explanation for the higher rates, and would confirm for guests who are looking to book for a specific event that they've got the right dates. Might also entice people browsing around to book if they see there's something going on that they might enjoy, like a festival.