Snorkeling is a popular activity at the Rainbow Springs. (JOE BURBANK/ORLANDO SENTINEL)
There are 77 campsites for rent for $17 per person at Juniper Springs. (STEPHEN M. DOWELL/ORLANDO SENTINEL)
Although known for its canoeing, Alexander Springs is also a good place to take a swim. (Stephen M. Dowell/Orlando Sentinel)
The tubing run at Rock Springs is three-fourths of a mile and admission is $1 per person. (RED HUBER/ORLANDO SENTINEL)
