The Sierra de Collserola is a mountain range located near Barcelona, Spain. It stretches approximately 30 kilometers and serves as a natural park, providing a green space for both locals and visitors. The area is home to diverse flora and fauna, making it an important ecological zone. The highest peak in the range is Tibidabo, which rises to 512 meters. The park features numerous hiking and biking trails, offering stunning views of the surrounding landscape. It also includes historical sites, such as the Tibidabo Amusement Park and the Sagrat Cor Church, attracting many tourists each year.