Located on the eastern slopes of Table Mountain in Capetown, South Africa, Kirstenbosch Botanical Gardens are considered one of the most beautiful in the world. The property covers over 1,000 acres. However, only about 80 acres is actually cultivated. The gardens were founded in 1913 to perserve the county's unique plants. It's the first botanical garden in the world that was designed for this purpose. Today the garden contains over 8000 species of plants.
You can spend an entire day roaming through the gardens. There are plenty of gurgling streams, ponds, trails, and gorgeous plants to look at. If you want to get an education about the various species of plants, I'd recommend taking the guided Fynbos Walk. You'll learn all about the indigenous flora of South Africa. There are many other free garden walks as well. If you want to go on those, visit the gardens on Tuesday, Wednesday, or Saturday. Also, if you like to hike, there are many trails leading from the garden into the mountains.
If you visit in the summer, be sure to stick around for one of the summer sunset concerts. They are held every Sunday at 5:30 PM from late November to mid-April.
The gardens are open daily September - March from 8 AM to 7 PM and from 8 AM to 6 PM April through August. Admission is R40 for adults, and R10 for children.