Happy Anniversary!
If you are heading to a hotel to celebrate a special occasion like an anniversary, birthday, or otherwise- don’t be shy- let them know! Most people will keep such information private thinking they are not eligible for an upgrade, but you may be wrong.
If the hotel has the extra space, they are likely to give you an upgrade, welcoming gift, or discount on the spa to help you celebrate your special day. You can write a note in the reservations comments when you make your reservation online- or simply give them a call and let them know.