Increasing emphasis is being given to facilities to help visitors to enjoy and understand the countryside. Six visitor centres have been established at Aberdeen, Plover Cove, Sai Kung, Clear Water Bay, Shing Mun and Tai Mo Shan. The Lions Nature Education Centre at Tsiu Hang Special Area in Sai Kung, has a collection of fruit-bearing and amenity trees, vegetables, rocks and minerals, and other local vegetation, has been established for the purpose of nature education. The Shing Mun Arboretum has a collection of about 300 plant species. Along nature trails and tree walks, there are on-site interpretative signs for those who wish to study the nature.