The Wekiva River is a 16.0-mile-long river in Central Florida, north of Orlando in the United States. It originates in Apopka and joins the St. Johns River, the longest river in the state, in DeBary. The Wekiva River system includes the main stem joined by three main tributaries - Rock Springs Run, Blackwater Creek, and the Little Wekiva River - and ab…The Wekiva River is a 16.0-mile-long river in Central Florida, north of Orlando in the United States. It originates in Apopka and joins the St. Johns River, the longest river in the state, in DeBary. The Wekiva River system includes the main stem joined by three main tributaries - Rock Springs Run, Blackwater Creek, and the Little Wekiva River - and about 30 contributing groundwater springs. It is designated as a Florida State Canoe Trail, an Outstanding Florida Water, and an Aquatic Preserve by the Florida Department of Environmental Protection. The Wekiva River system is also one of the two rivers in Florida federally designated as a National Wild and Scenic River for its scenery, recreation, geology, and diverse habitats.