Dates that are red are considered unavailable for rent for that specific night. You cannot 'check-in' on dates marked unavailable, as the property is rented or occupied that evening. You can 'check-out' on the first day of a period already marked as unavailable.
Arrival Dates
You cannot arrive on a day that is marked unavailable.
Departure Dates
The last day of your stay (the departure day) can fall on a day that is marked available or the first day of a period that is already marked unavailable.
