The Main Salmon River navigates through the Frank Church-River of No Return Wilderness from east to west through Idaho. A permit is required between Corn Creek and Vinegar Creek (mile 79), from June 20 - September 7. It’s a scenic, big water river with rolling rapids and excellent surfing opportunities for kayakers. James Ranch and Petes Rock Rapids are the only main sections of whitewater during this peaceful run. The trip also passes by numerous campgrounds, tributaries, beaches and swimming areas. This waterway is perfect for family trips because of the beaches and pools for kids to swim in, plus it happens to be less challenging than the Middle Fork.