Check list
Passport
Ticket – very funny
Map, tour book
Books to read
Shampoo, conditioner, lotion
Nail clipper
Toothbrush/paste, dental floss, Listerine
Summer clothes, water proof windbreaker. A foldable umbrella is useful.
A visor, a hat, sun block oil if you do not like to get a tan.
Old sneakers: some places are muddy and sandy.
Tennis racket, swimming gears.
Your favorite shampoo, soap.
Medicine. There are many pharmacies but .. ..
Mosquito repellent like