See all Things to do in Idaho Falls Idaho Falls for: Adventure, Food And Dining, Art And Culture, Nightlife, Spa, History, First Timers, Family, Romance, Shopping Idaho Falls River Walk Riverwalk Drive, Idaho Falls, ID 83402, USA About Idaho Falls River Walk (The Greenbelt), [3]. A six mile path situated next to the Snake River, one of the most beautiful sites in Idaho Falls. Free. Add to Wish List