Ask Mike said you need to go on the website for Southwest Florida water Management district and make an online reservation. They are free but you do need one and they will give you the code You need to get in when you are accepted.
https://www.swfwmd.state.fl.us/recreation/potts-preserve/activities
Call 3527260085.. Iv personally never made a reservation I'm a local and live down the road...😀 I can ask around and get back to you..
Thanks! Your answer is awaiting moderation.