Please don't blame you all's inability to think of things to do on her blindness. It is pretty insulting, both to her, and the rest of us who are blind too.

Go watch a movie with AD, ice skating, rock climbing, tandem cycling (you'll each need a sighted driver), go for walks, dinner, psychedelics if you're in to that..the list is endless!

concerts are excellent.

a day trip to a museum with audio tour or tour guides.

movies with described captioning.

walks or hikes while it is still picnic weather.

trying out new restaurants together.

I’m completely blind, and my girlfriend is sighted. Last Sunday I met an aunt that came to visit her family. She was asking me quite a few questions, as she considers herself to be my GF’s 2nd mother.
We blew her mind when we stood up to go on our date. She exclaimed my girlfriend’s name when she realized we were going to the movies.
We just laughed at her reaction. And later on my GF talked with her regarding blindness awareness, and how we do regular stuff without issues.

Concerts, walks in the park/gardens. Check into any gardens and what flowers are blooming, they usually have interesting smells.

Camping, hiking, swimming, bowling, concerts, dining. My mostly blind wife enjoys all these things.

What sort of things *can* you think of, visual or otherwise?

Cooking together, discussing charcuterie as you eat it, movie nights, picnics, etc are all normal dates that work just as well with blind people.

Any outdoor sculpture parks nearby?

Super detail walks. Don't go far. Be somewhere interesting, ideally rural or parkland. Stand still and listen, feel the textures under your feet and nearby at hand. Smell flowers, touch the lichen on a tree, crumple leaves in you hands, listen to the buzzing of insects, feel the warm breeze on your face. Walk a little, find something else interesting, listen to water lapping against a lake shore or river bank, touch the water with your fingers, talk about what you can see and how it relates to the other senses.

Pottery or other art classes.

Music appreciation night. Each bring six tracks and take it turns to listen and explain what you think is special.