On the Booking page or on the calendar interface, is it possible to customise the text where it says “There’s a holiday during that time period.”? Or grey out/disable the confirm button to make it clearer possibly? Also at a quick glance the calendar looks available - could holidays be greyed out?
Having set in the Package Rules, that a member only has access during opening hours, maybe here we could specify “Can book during holidays?”, or when setting up the specific holiday, where we already specify “Admin only” etc.
For us, we have no out-of-hour members, so a holiday means no access. Unfortunately people seem to be getting confused if we don’t spell it out for them!
Hope that makes sense.