Archaeological evidence indicates that people have been using this spring for nearly 10,000 years. Rainbow Springs is Florida's fourth largest spring and, from the 1930s through the 1970s, was the site of a popular, privately-owned attraction. The Rainbow River is popular for swimming, snorkeling, canoeing, and kayaking. Canoes and kayaks can be rented at the headsprings. A picnic area at the spring includes tables, grills, and pavilions. For large gatherings, private pavilions can be reserved. Tubing is not allowed in the headsprings area of the park. Other restrictions apply to use of the headsprings such as swimming is only allowed in designated areas, no scuba gear, motors on watercraft, etc.