Established in 1883, the Bukit Timah Nature Reserve is one of the first forest reserves established in Singapore. The 163-hectare reserve retains one of the largest tracts of primary rainforest left in Singapore. Bukit Timah is also home to Singapore's highest hill at 163.63 m and was once an active quarrying site in the mid-1900s. One abandoned quarry has been developed as a park. Hindhede Nature Park is now a popular spot with visitors who come to enjoy the quarry's scenic beauty and have some fun with the more adventurous play equipment.