Howdy Kimberly!
It sounds like you are just like me, I can't wait to get the magic started as soon as possible on a Walt Disney World vacation. I usually always arrive earlier than the normal check-in time and have had no problem getting the adventure started as soon as I arrive.
You are welcome to arrive at
The Campsites at Disney's Fort Wilderness Resort as early as you wish. You will need to check-in at the front desk and get your
MagicBands. Once you have these, you can park your vehicle and use Disney's complimentary transportation to explore a Theme Park, Disney Water Park, or Disney Springs. You will need to have your id available as you enter Fort Wilderness. The Cast Member at the entrance will verify you have a reservation and you will be directed as to where to check in.
Kimberly, I encourage you to take advantage of
Online Check-In which is available through your My Disney Experience account. During Online Check-In you can indicate what time you will be arriving and maybe just maybe your campsite may be available early.
I hope this has helped. If you have any other questions pleas let me know. I love to lend a helping hand to fellow Guests.
Dream as Dreamers Do,
Jen