Wekiva springs or Wekiwa Springs, located in central Florida, consists of 2 spring vents. The first has a huge rock formation with a slit that drops down to about 20 feet. From there you can see the spring source which has a strong flow. The second vent is located in the same basin about 100 feet apart. Wekiwa is now a state park and is well maintained. Going to this site can be combined with one of the neighboring springs for a decent days snorkel/dive. Wekiva does not allow scuba diving. A cave dive was allowed a few years back that mapped several hundred feet of cave passage way through "tight restrictions."
Directions: North of Orlando
East on US 441 for 1 mile from the town of Apoka. Left on S-436 for about 1.6 miles until you reach a paved road. Turn left and go 3 miles until you see the sign for the park on the left.