Custom itineraries are personalized travel plans designed to meet the specific preferences and needs of individual travelers. They can include various elements such as accommodations, activities, and transportation, allowing travelers to explore destinations at their own pace. These itineraries are often created by travel agents or online platforms that take into account factors like budget, interests, and travel style. By tailoring the experience, custom itineraries help ensure that travelers make the most of their trips, discovering unique attractions and experiences that align with their desires.