Malaysia has 25 terrestrial national and state parks and a further 40 marine parks. Conservation areas range from the massive Taman Negara, more than a million acres of the world's oldest primary rainforest, to the semi-urban and man-made Taman Wetlands in Putrajaya. The biodiversity of Malaysia's forests is immense. It is said that there are more species of trees in one hectare of Taman Negara than in the whole of North America. It is important to note that while many parks are open to the public, others may require special permits and authorisation to enter. For instance, you can watch turtles at Pulau Talang which is open to the public, but entry to Pulau Satang requires special permits from the park authorities.