This short tributary of the Withlacoochee River is a well-known spot for recreation that offers beautiful clear waters for paddling and wildlife viewing. The river originates from one of the largest springs in Florida and is home to lots of underwater wildlife that is easily visible from watercraft. Setting off from K.P. Hole Park, paddlers can explore the Rainbow River downstream for almost 4 miles to a take-out at CR 484. The river can also be paddled upstream towards the springs but this is a bit more physically challenging. The area is popular with boaters and tubers, especially on the weekends, and there is quite a bit of development, but the scenery is still impressive and very worthwhile.