From Fl 417 Toll N Take Exit 49 For County Rd 427 Toward Airport/Lake Mary Blvd. Use The Right Lane To Turn Right Onto County Rd 427 N/N Ronald Reagan Blvd. Turn Right Onto E Lake Mary Blvd And Continue Onto State Rte 415 N. Turn Left Onto Reed Ellis Rd And Merge Onto Enterprise Osteen Rd. Turn Left Onto Stone Island Rd And Then Right Onto Arrowhead Trail .