To find the address for a hotel booking, you have several options available to you:
Check the confirmation email and PDF attachment received after booking.
On your Melon homepage, click the required booking tile in the Upcoming Trips section, then click on the hotel details to open up the reservation, which will show the location details.
You can follow the same process via the My Trips tab at the top of your Melon homepage.
Plus, In the Hey Menu, the My Trips tab too.
You also can use the Melon Mobile App, go into the booking tile and access hotel location information if you are on the go!