Where do I get my seasoning pass

Copied from website: Annual Passes ​ ​(Jan - Dec)​Annual Vehicle​$60​ $50Senior (62+)​ $40 Annual Biker Hiker​$35​ Car Top Boat Launch Sticker (per vessel)​$20​​ $20 Veterans receive a 50% annual pass discount​​​ Vehicle + Foundation Membership​ $85  Fee​ Discount Rate for Marion County Resident (Show ID)​ Biker/Hiker​$3​ $3 Vehicle Daily Admission​$6​ $5Bus Entry​ $15 Car Top Boat Launch (in addition to vehicle admission)​$3​

Online or you can get one at the little ranger houses at the entrance

You can buy it online.