Hidden away on Chongming Island, Shanghai Dongping National Forest Park is the city's biggest artificial plainforest and provides a huge natural respite. Covering more than 3.55 square kilometers (1.37 square miles), it is a green oasis known as Shanghai's "green lung." Guests can lose themselves in a peaceful habitat of thick forest, placid lakes and vast lawns. This park is ideal for cycling on tree-shaded trails, boating in its waters, camping under the stars and just having a serene picnic with friends and family. Seasonal flowers are displayed, seasonal flowers such as chamomiles of spring and cosmos of autumn can be viewed.