Escalada Regulada https://montanaregulada.org/area/la-pedriza-sierra-de-guadarrama
To avoid the damage that excess traffic can cause to natural resources, there is an entry control at the existing barrier at the entrance to the National Park, which allows the entry of vehicles until the maximum quota of 270 vehicles per day is reached. Once this figure is reached, the gates of the park are closed and you can only enter on foot.
There is a car park located next to the gates of the park with capacity for about 300 cars. On weekdays there are no capacity problems, but during the weekend, La Pedriza is a very popular destination among the people of Madrid and it is convenient to get up early to find parking.
