Booking.com Calendar Export iCal Link
1. Sign in to your Booking.com account and select the listing you would like to sync with. Note that each listing has a different iCal URL so make sure to select the correct listing.
2. From the left navigation, go to Rates and Availability tab and click on Sync Calendars.
3. Click Add calendar connection, then scroll down and click Skip this step.
4. Scroll down to Export your Calendar and copy the link.