You do not need a passport to cross the border (yet - Jan 08 you will ). Your driver's license and birth certificate is enough for adults, birth certificates for children under 18. If both parents are not travelling with the children, you will need a letter of permission and/or custody agreements, etc.ANd we are headed up to Niagra Falls too! anyone ever been there? Do we need passports or can we stay on the USA side and see everything, I read on one website that we can have a Birth certificate and picture ID to get into Canada, what about kids? DO I need to go get them a picture ID?