My husband is afraid to go on test track because his back may go out. If I took one child can I use child swap to take the other because he's not going on?
Yup- you can take both at the same time. If the 4 year old isn't tall enough, you could actually get a child swap pass and you and the 6 year old just both ride two times. (That's a little mean to the 4 year old and hubby, though