Broke? Try a Float. BOISE IDAHO (idaho) - The Boise River is now open for floaters. Few things in Boise are more popular than floating the river and it's free. If ever there was a time when free and fun needed to be together, it's now. Boise State Radio's Adam Cotterell talked to some of the first floaters of the year to find out if affordability was what got them in the water. © Copyright 2009, idaho