Many people do see a bear from a safe distance, and they consider it a thrill of a lifetime.
Bears tend to hideout during the day when most people are out exploring the park. The best time to see a bear is very early in the morning or late in the evening. Bears are out hunting their food at this time. With a little skill, a lot of patience, and a lot of luck you may have an experience of a lifetime. The black bear is not always black.