What precautions are advised for a family travelling with a 4 yr old baby?

the main thing you need to take care of is that wherever you are planning to stay, make sure it is a safe place in terms of easy access to shops, medical facilities and such. also, make a medical kit with the medicines that your kid takes on a regular basis, a thermometer, some band-aids, burn antiseptic, antiseptic liquid and such - ask the doc for medicine supplies that you can carry for emergency. and make sure to carry your kid's medical file in case it is required. other than that, carry any favourite toy or item that your kid can't stay without, so that your kid is comfortable and does not miss it and cry. you can also pack a few instant noodles and similar food items that you can give your kid in case there is no appropriate food available for some time. whatever you do, make sure one of the parents is constantly present with the kid. have a safe and fun travel :)