Wear comfortable clothing and shoes, take pain pills in case you get to hurting especially if you have sciatica and riding on a bus that long.,water. You should see if they have the walkers with seats.
Don't carry a big purse or anything heavy. Use their coat and bag check.
If taking pictures at a booth #1 Rule Always ask the Vendor First. I never have any problems if I do that but there are a few that won't let you. Now my opinion on that is why bring your stuff and show it if the people can't admire your works. (I don't want to hear copyright)
But the main thing is Have Fun take your time. Are you going anywhere else like to any quilt shops local there?
I wished I still lived there I'd be going. I'm in CA. Now.