The Bukit Timah Nature Reserve is a small 1.64 square kilometer (400 acre) nature reserve near the geographic centre of the city-state of Singapore, located on the slopes of Bukit Timah Hill, Singapore's highest hill standing at a height of 163.63 metres, and parts of the surrounding area. The nature reserve is about 12 kilometres from the Downtown Core, Singapore's central business district.
Despite its small size, it is considered one of the most productive pieces of nature, particularly by Alfred Russel Wallace. Together with the neighbouring Central Catchment Nature Reserve, it houses over 840 species of flowering plants and over 500 species of fauna. Today, it is one of the largest patches of primary rainforest left in Singapore. The forest reserve was formally declared as an ASEAN Heritage Park on 18 October 2011
Bukit Timah Nature Reserve is located just 12 kilometers from the city and is spread over an area of 164 hectares which is covered by rain forest. It is also home to the highest hill in Singapore that is 163 meters high. There are quite a large variety of plants in the Nature Reserve with many of them still being discovered by scientists.There are more than 840 flowering plants and almost 500 species of wildlife. They create a beautiful atmosphere which proves to be very useful for the hikers. There are different kinds of hiking trails in the Nature Reserve with their level of difficulty varying. The four main trails in the Nature Reserve are Red, Blue, Green and Yellow depending upon their intensity and the length that the hikers have to cover. The Kampong Trail leads to MacRitchie Reservoir which is one of the easier trails in the reserve.