Whether you have friends or family visiting, or you're just looking for a fun affordable activity to do on a weekend in Boise Tripadvisor has created a list of what they think are the 10 best free things to do in Boise. Tripadvisor's 10 Best Free Things To Do In Boise Who doesn't love free?! Gallery Credit: Shannon BuccolaSome of Boise's Best Free ActivitiesThe Boise River Greenbelt is one of Boise's most treasured spots. You can checkout even more free activities according to Tripadvisor here. Enjoy Boise and enjoy not spending too much money when you check out all of these awesome activities!