Enjoy a full-day of white water rafting along the Mamoni River, the closest white water adventure to Panama City, being just 1.5-hours east of the city. The river was pioneered for rafting and kayaking in January 1998. With moderate to intense rapids, the Mamoni River usually reaches its highest water level by November, at the peak end of the rainy season, and its lowest water level by May-April at the end of the dry season.