Park Güell has 2 different areas: the Monumental Core, which requires the purchase of a ticket, and the free access area which is open to all visitors at no charge.
The part emphasized on the map is the Monumental Core. The rest of Park Güell can be entered without restriction and free of charge.
You must arrive at the access control point at the assigned time so as not to lose your scheduled entry times. Entry will not be allowed outside the times stated on the ticket.
If you arrive at Park Güell before the assigned time, you can start your visit with the free entry zone.
Once tickets have been purchased, no change of date or time will be allowed.
The tickets for visiting the Monumental Core do not include the Gaudí House Museum.