Final answer:
A 4-day special pass is a ticket or permit that allows access to specific activities or attractions for a four-day period.
Step-by-step explanation:
The 4-day special pass mentioned in Para 5-27 refers to a type of ticket or permit that grants access to certain activities or attractions for a period of four days. This could be related to tourism or recreational activities, such as a pass to visit multiple theme parks or museums over the course of four days.