P gets a hike and a swimmy on his birthday if the weather is nice (sometimes in May it is not.) That's what he likes to do so that is what we do!
Auggie's big 1-0 my friends came over and pet him and gave him ice cubes and he got cake. His ideal day really is just all kinds of people loving on him, so that's what he got.
I just try to think of what it is they really like. One year for Auggie's birthday I shut the other dogs out of my bedroom and it was just the two of us for 3 or 4 hours, no pest brothers or sisters. Then I gave him a bully stick all his own to chew alllll by himself.
Pepper I took to the pet store by herself one year so she could pick out.her own toy. Just the two of us, yes. Pet store... No. Sorry Drizzle. Bad planning that year.
Find some dog friendly activities you can both enjoy?
We have a dog friendly drive-in theater that has dog portioned vanilla ice cream cups. Pet store to pick their own gift than front seat with vanilla ice cream watching a movie at the drive in safely sectioned off from other dogs and people. LOL.
I find for older dogs they may get bored of seeing and visiting the same places. If she is the type that likes exploring things out, then maybe you can take to a some location she hasn't been too that is safe for off leash. I know it isn't too out of the box but it is still an idea that may bring happiness to a dog.