BTNR is a popular place for many Singaporeans. Everyday, many people go there to jog, hike, or for a stroll. There is also a 6km long Mountain Biking Trail for mountain bikers to cycle. The mountain biking trail goes around the reserve, going along the green corridor where the old KTM trains used to pass by, then passing by the Singapore Quarry, followed by Dairy Farm Nature Park and the Bukit Timah Expressway (BKE), then near Rifle Range Road before back to the carpark where the trail starts.