Absolutely beautiful trail, lots of places to stop and take pictures of the vistas. The hiking trails at the gardens start at the waterfall. These falls are at the source of the Crocodile River which flows into Hartebeespoort Dam in the Magaliesberg. Awesome picnic spots to enjoy after your hike. One of the great escapes of Johannesburg, the Walter Sisulu National Botanical Garden in Roodepoort, Gauteng, is almost 300 hectares of landscaped and natural veld that is a haven for birds.