The RDC, about 1.5km from SORC, offers an engaging graduate-level education in tropical flora and fauna. Outside the exhibit hall filled with child-friendly displays, a botanical garden presents samples of tropical plants. There's a gentle 1km lakeside walking trail, and a series of eight canopy towers connected by walkways to give you a birds-eye view of the rooftops of the trees; by far the most rewarding element of a trip here.
Paddleboats (RM5) are available to ride around the inviting lake near the centre's entrance. You can also book night walks, which afford the chance to spot nocturnal animals like tarsiers and wild cats.
It's best to get there either at 8am or 4pm, as wildlife tends to hibernate during the sweltering hours in the middle of the day. A proper visit along the trails and towers takes around 1½ hours. This is a good spot to while away time between feedings at the SORC.