Things to do in Boise When You're Dead*

OK,there is no actual dying involved, but I will be in Boise, Idaho for about 30 hours on business (Sunday night through about Noon on Tuesday) next week.

It's a work thing, but I figure that I'll have Monday evening off.

Any suggestions of things to do?  I've been told that there are some good Basque restaurants in the area, though I haven't got any specific names.

^*Truth be told, I've never seen the movie Things to do in Denver When You're Dead, but the title has stuck in my head.