To make a reservation, please call the park directly at 407-254-1940; leave a detailed message if you reach voicemail. R.D. Keene Park has two soccer fields available for a rental fee of $15/hour, a large covered playground, and picnic areas. Located on beautiful Lake Isleworth, R.D. Keene Park's boat ramp offers public access to the Butler Chain of Lakes. The boat ramp has parking for up to 49 vehicles and trailers. User fees are as follows: vehicles with trailers and motorized watercraft, $5 per day; vehicles only, free; vehicles with non-motorized watercraft, free; and boat ramp annual pass, $150. When the Boat Ramp reaches parking capacity, the entry gate will CLOSE and re-open after 2 p.m. No waiting or “drop and go” will be allowed.