It's not as big as you think, but the exhibits are very informative. Plan for half a day there at most Not much parking there or downtown in general, so take an Uber/Lyft there and then walk around downtown
If you go to the Alamo, you'd might as well see The Riverwalk too since you're right there. Worth going on a boat tour to hear about the history of The Riverwalk and downtown Most of The Riverwalk is restaurants, bars, and shops
The largest mission in San Antonio
All day trip
All day trip
Lots of cute craft shops and restaurants here
Good live music, eat dinner elsewhere and have a couple drinks here. Tickets needed to enter
Cute modern art exhibit
You can spend half a day to all day here. It's pretty large and there's a lot to read. Check the schedule for any fun events happening here too
Beautiful home that has been renovated into an art museum. Expect to spend a few hours here
My favorite bakery to grab breakfast when I worked downtown
One of the best Tex-Mex restaurants in SA. You can pop in real quick for the bakery or dine in for a meal
Authentic Central Mexican food
Largest wildlife bridge in the US, about a mile walk on gravel from the parking lot
San Antonio has the most green spaces out of all the cities in Texas! I recommend visiting Brackenridge, Hardberger, Hemisfair, or Eisenhower if you want some green time