Splash Island El Dorado Hills Splash Island El Dorado Hills Watch their eyes light up as they climb, slide, splash and shoot hoops! Splash Island El Dorado Hills features 2 different slide options to keep your little one entertained with plenty of choices of where and how to slide down. Designed for children 2 – 10 years of age. This slide can be used wet or dry and has a non-pooling water feature for the safety of little ones. Standard prices shown during checkout are for rental durations ...