The rivers of North America offer some of the world’s best white water rafting opportunities, with thrills for experienced rafters and newbies alike. From white-knuckle rapids to more relaxed family floats, rafting is a great way to add a dash of adventure to a trip. Vote for your favorite rafting tour once per day until polls close on Monday, May 20 at noon ET. The 10 winning tour companies will be announced on Friday, May 31. Read the official Readers’ Choice rules here.