Traveler Theme allow customer to manage the available calendar online of Airbnb with this function.
How to get calendar url to use in our theme
Step 1: Login your account in Airbnb website.
Step 2: In the dashboard, select Listings on the menu header.
Step 3: You can config calendar in Availability tab.
Step 4: After completed the step 3, scroll down to the bottom of page to get the calendar url at Export Calendar section.