Before you arrive, confirm how you will check in with the manager or owner. Each manager or owner has a system for key exchange. For instance, property managers typically have key pick-up/drop-off at a central office location near your holiday rental. Other managers/owners may use lock boxes or keyless entry codes, or may simply mail you a key prior to your arrival. Some managers or owners like to meet their guests at the rental property to go over check-in/check-out details. In this case, you probably would not receive a key prior to arriving. Your rental agreement should include details about key exchange; if it doesn't, be sure to ask the owner/manager in advance.