I did nsw to nt with a 5yr old a 3 yr old and a newborn. So a little different in age, we had a travel box for the older 2 filled with masks (to colour) sticker notepads, books, colouring pages, crayons and pencils some sensory toys like the squishy things (technical name right there lol) and bubbles the box fit comfortably on their laps or on the floor at their feet. We also had DVDs and bop it the game the kids really weren't interested in DVDs or bop it unless it got dark. It was their travel box all the way 3 days solid in the car and it was the best!