The document discusses different types of urban parks and gardens, including botanical gardens, urban parks, and theme parks. It provides examples of each type from Portugal, such as the Botanical Garden of Porto, Urban Park of Rio Ul in São João da Madeira, Na Sra. dos Milagres Park also in São João da Madeira, Ferreira de Castro Park and La Salette Park in Oliveira de Azeméis, and the Ul Watermill Park which takes advantage of existing watermills. The document emphasizes that urban parks and gardens provide leisure, recreation, and a high quality of life for city residents while preserving plant species and the environment.