Washing your baby's hair is more about aesthetic concerns than cleanliness, though some mild soap can help.
assitant
Then just make sure you have a bag for the diaper that you're changing.
assistant
What should you pack in a diaper bag when you go to an amusement park?
user
Baby shampoo and diaper rash ointment.
assistant
I can't really shampoo the baby at the park.
user