Block dates when you can't take bookings — maintenance, personal use, off-season closure.

Block a date range
Open the calendar.
Click and drag across the dates to block (or click a single date).
Choose
Block dates
.
Optional: add a reason (visible to you only).
Save.
Unblock
Click the blocked range and choose Unblock.
Tips
Choose the scope carefully: block at room level if only one room is unavailable, at accommodation level if the whole venue is.