The Rainbow River is located in Dunnellon, Florida, United States, in the southwest corner of Marion County, about 20 miles (32 km) southwest of Ocala, 100 miles (160 km) northwest of Orlando and 100 miles (160 km) north of the Tampa Bay area., Located 40 minutes south of Blue Grotto, Rainbow River is not a river at all but rather one of Florida’s two longest and largest spring runs. This helps explain its unusual clarity., Rainbow River in Florida is a crystal-clear spring-fed river in Dunnellon, offering kayaking, tubing, and snorkeling amidst lush nature. Its vibrant waters and diverse wildlife make it a top destination for outdoor lovers., The Rainbow River is a gently winding river that is 5.7 miles long and merges with the Withlacoochee River at Dunnellon Florida. The headwaters is the anchor for the Rainbow Springs State Park., Rainbow River information on the history, location and volume of spring water the Rainbow River in Florida pumps out daily. Visit the pristine Rainbow River in Dunnellon Florida., The clear embrace of Rainbow River. Rainbow River, Rainbow Springs State Park, Florida Nestled in the northern Gulf Coast of Florida, is Rainbow Springs State Park. This area has served as a natural resource for humans and animals for centuries, with the Rainbow River—flowing through the park—playing a major role..