This is a part of Chapmans Peak drive on the Atlantic side of the Cape Peninsula. The metal nets and railings are to protect against rockfalls. One of the most scenic drives in the world.
For those interested https://www.chapmanspeakdrive.co.za
No thank you! I have panic attacks on roads like that. We drove one last fall that on barely wide enough for 2 cars at a crawl. Luckily no one came from the other direction. I was on the floor for the whole drive!!