You pick your campground, and campground dates. Max stay limit is 8 nights. Here is a more direct different page link for those having a hard time finding the online RV parking application. https://secure.rzda.net/sfwmd/list.cfm

Recreation Permit for Hickory Hammock Campground Scroll down to the page to apply for A Special Use License.

https://www.sfwmd.gov/community-residents/recreation/sul Find: To obtain a Special Use License, click here to access the online application And do the click here part where that goes. You'll have to make an account and log in to access another location or amend your dates so it is well worthwhile.