Is it ok to take 18 months baby on short 3 days tour? What should I pack for him?

yes absolutely, and your baby will have a lot of fun too :) For Snacks: you can carry a host of snacks such as cheese slices and bread, buns, freshly baked banana bread and muffins, raisins, cashews, oats that you can boil in milk and give when required, sooji rusk, fruits, thepla, kulcha that you can give with butter or jam, peanut butter, rice and dal that you can cook in a travel pressure cooker. do carry your baby's favourite pillow and sleep toy, as well as a favourite blanket if any. some extra pairs of socks and undergarments is also important, as babies tend to dirty them a lot. in addition, carry a good travel cooker, a baby medicine kit and a thermometer, along with a baby mosquito repellent