While having a car in the Peak District can provide more flexibility and convenience, it is not strictly necessary. The region is well-served by public transportation, including buses and trains, which can take you to many popular destinations within the national park. Towns like Bakewell, Buxton, and Matlock have good transport links and offer easy access to nearby attractions. However, it's important to note that some of the more remote areas and hidden gems within the Peak District may have limited public transportation options.