Austin but everything is spread out around here. I don't know much about that area aside from the Riverwalk(highly recommend) Going a little north to New Braunfels is the main water park in the area. https://www.sixflags.com/schlitterbahnnewbraunfels If your into retro games there this, favorite retro shop within Texas. https://dpadonline.com/

Otherwise, Austin is about an hour drive north, and honestly anything you wanna go do always seems like a hour drive. For movie theaters try the Alamo Drafthouse. No where near as cool as it use to be before the pandemic, but still better than most of the rest of chains.