1.Passive voice: "are drawn to parks and outdoor spaces" uses the passive voice to emphasize the attraction of young people to these places, adding complexity to the sentence.
2.Infinitive phrase as adverbial: "to enjoy nature and breathe fresh air" uses an infinitive phrase to describe the purpose of visiting parks and outdoor spaces, enhancing the clarity and depth of the sentence.
3.Noun phrase as subject: "The open and free access" serves as the subject of the sentence, using a complex noun phrase to describe the characteristics of parks and outdoor spaces, adding richness to the expression.
4.Parallel structure: "engaging in sports, recreational activities, and hosting picnics or group gatherings" uses parallel structure to list activities, showcasing a complex sentence structure and diverse expression.