If the weather is good you can watch the river surfers. Bend has good restaurants that you can check out on yelp. And there is a cool, kind of upscale shopping street (Old Mill District) that we once stayed right beside. Bend is about the outside and taking hikes or bike rides in warm weather.
Like Dawn above said, if noone pops on here, the internet has lots of stuff I'm sure.
https://www.visitbend.com/things-to-do/