This City Mountain is somewhere near Cheras, about 2 hours plus of trekking (5 stations) and you could choose to descent to a nice little waterfall. Though small, but it is still nice and cooling.
Direction: Along Jalan Loke Yew until you pass by Leisure Mall, look for a "Pasukan Pergerakan Am" sign or army base on your left (before the Toll). Turn left and go along until you reach a T-junction, then turn right and go along until you see some shop on you left. Turn left before the shops until you reached a new residential area named "Sunway Cheras". Bukit Wangsa Cheras is somewhere beyond "Sunway Cheras". There is an empty field there, followed a row of shops and followed by residential area. There shall be a lot of cars there during the weekend.
The steps are quite steep and challenging at some point, and should take around 2 hours to reach the top (station 5). There is not much of a view there, so your best reward is the waterfall. The descent to the waterfall is quite steep at some point, and the entire journey shouldn't take more than 3 hours (not counting the time you spent at the waterfall). There is a nice hut there build by the local community, and the place is just nice for 20 people or less.
Photo Links: Mei Ru's Multiply, Ah Bug's Multiply