Tackle advanced-level (Class IV) rapids like "Hell's Half Mile," "Slaughterhouse Falls" and "Entrance ... What is the best time to go whitewater rafting in Colorado? The whitewater rafting season ...

During Colorado's warm months, whitewater rafting opportunities abound as the state's rivers swell with snowmelt. Travelers have their choice of rafting companies in nearby Fort Collins ...

These outfitters take advantage of the spring melt and rains to offer up adrenaline-pumping Wisconsin whitewater rafting ...