Hello @Svetlana142
I think when location is critical for you, it's always wise to communicate with the host in advance of confirming your booking, particularly for a long term booking. What does it say in the listing about how far away it is from the beach and other key amenities? Does the host indicate a car is needed or are there public transport options? What have previous guests said about the location in the reviews?
I think the indication on the map should be fairly accurate but is only an indication. How do you know it is 2km away from where it was indicted on the map?
I am not sure there is a 'policy'. This is what Airbnb says
General location: We’ll show the general area of a listing to guests searching for a place to stay, but not its exact location. Guests can see your listing’s neighbourhood and how close it is to landmarks, transport stops, and other points of interest. After their reservation is confirmed, we’ll show them a host's exact location and address.