Can a baby of 4 months travel?

Yes, but try not to take such a small baby out of town. First, children need to be held all the time. Adults are tired, children are too young and have low resistance. Tourist attractions are often crowded and lively, always preventing people from crowding. If you catch a cold, you will lose more than you gain. Especially now that the epidemic has not been completely eliminated, it is risky to take the baby out.