Tail light? Do u mean a reflector or an actual light? :confused
I found this regarding bike rules at the Fort. You will need head and tail lights at dusk.
BICYCLES and RECREATIONAL DEVICES
All Florida Rules of the Road apply while operating any bicycles (privately owned or Walt Disney World rental) and any electronic personal assistance mobility devices (EPAMDs), such as, Segways.
Bicycles and electronic personal assistance mobility devices (EPAMDs), such as, Segways, must be equipped with head and tail lights to operate after dusk.
Florida State Law requires that all bike riders under the age of 16 wear a bike helmet.
Bicycles, provided the Florida Bicycle Traffic Laws are followed, and electronic personal assistance mobility devices
(EPAMDs), such as, Segways, may be used on sidewalks, paths, and roadways.
Skates, kick and electric scooters, and electric mobility devices must be used on sidewalks and paths only. No roadway
use.
Skateboards, ripsticks, gas‐powered scooters, motorized dirt bikes, and personal watercrafts are not permitted.