The Sand Island to Mexican Hat river run in Utah is a 26-mile stretch of the San Juan River that offers a moderately challenging float. The rapids are rated Class II-III and are mostly concentrated in the first half of the run. The river features some unique obstacles such as the "Goosenecks" which offer stunning views but require careful navigation. The best time to float this section of water is from April to June when water levels are high, with recommended flows between 500-2000 cfs. This river run is suitable for intermediate paddlers and is a great option for a weekend trip.