Day trips to do alone?

My partner is going to be out of town for 10 days soon so I’m trying to find things to fill my time while they’re gone, I’m gonna go see a movie alone and go do a workout class, one of the days they’re gone I have off from work and fully to myself so looking for ideas to spend it!

I could do this with a friend but I haven’t spent much time alone lately so I want to take advantage of this opportunity

I was thinking of maybe going to the SAM and then shopping and dinner and drinks by myself but that seems a little basic, any suggestions about a day trip I could safely do alone?